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🤖 LeRobot v0.7.0 on Lance, 🤝 ASOF Joins in DataFusion, 🔄 LLM Pretraining from One LanceDB Table
LeRobot v0.7.0 trains on Lance tables straight from object storage, ASOF joins contributed upstream to DataFusion, and GPT-2 pretrained from one LanceDB table, plus Feature of the Week, upcoming events, and community updates.
Augmetec helps investigators find critical evidence faster with LanceDB Enterprise
LEIAA, Augmetec's investigation platform, combines semantic search, precise filtering, and document-level ranking to help investigation teams work more efficiently, preserve context, and pursue better lines of inquiry.
🤖 LeRobot Trains on Lance, 🦾 Mining Robot Fleet Data Demo, 🔍 Vector Search at 10B Scale
LeRobot trains directly from Lance datasets in object storage, a hybrid scan mines robot fleet data for edge cases, and distributed search reaches 1,066 QPS across 10B vectors, plus upcoming events, enterprise updates, and community contributions.
How Jev Compares to Other Rerankers
See how Jev performs in a benchmark of 19 reranker configurations across five datasets, covering accuracy, latency, and prompt-driven relevance for LanceDB search.
Giving Back to the Open Source We Build On
LanceDB adds ASOF join support to Apache DataFusion, improving time-series joins while giving back to the open source projects we rely on.
From 10 Million to 10 Billion: Vector Search Built to Grow
LanceDB lets you tune search precision at query time, balance memory and disk caching, and keep new data searchable as your table grows.
A Practical LLM Pretraining Pipeline with LanceDB
Training a GPT-2-like model from raw text in 25 minutes with LanceDB, using one table for curation, tokenization, shuffling, packing, training, and analysis.
🎤 Reverie, Nov 5, ⚡ ML Data Loading Performance Guide, 🧠 CrewAI Cognitive Memory on LanceDB
Reverie launches as LanceDB's summit for AI builders, GPU training bottlenecks traced to CPU-side transforms, and CrewAI unifies cognitive memory on LanceDB, plus upcoming events, enterprise updates, and community updates.
Turning Fleet Data Into Better Models: The Data Mining Challenge in Physical AI
The next bottleneck in robotics and autonomous systems is turning fleet experience into the right training data.
Feature Engineering for Multimodal Data: From Laptop to Cluster with LanceDB
Run a multimodal feature-engineering pipeline in ten minutes with geneva-examples, then rebuild its CLIP embedding step with LanceDB's feature engineering API, the same calls you'd use to enrich your own tables on LanceDB Enterprise.
Announcing Reverie Summit: What AI’s Next Breakthroughs Are Made On
One day with the researchers and engineers building generative video, world models, physical AI, and the data systems beneath them.
⚡ Multi-Bit RaBitQ Without Refine, 🌋 Bytedance’s Lance-Based AI Stack, 🤖 Lance for Embodied AI Data
Multi-bit RaBitQ hits 96% recall without refine overhead, Volcano Engine cuts training pipelines from 7 days to 1, Lance powers 100 Hz robotics data ingestion, plus upcoming events, enterprise updates, community updates.
Why CrewAI Rebuilt Agent Memory on LanceDB, Powering 2B+ Agent Executions
CrewAI replaced a two-system memory stack with LanceDB, then rebuilt agent memory to resolve contradictions and gate recall on confidence. It now ships by default across 12 million monthly downloads and 2B+ agent executions.
Data Loading for AI/ML: A Comprehensive Guide
A deep dive into data loading for model training — the three pipeline stages, parallelism strategies, shuffling, caching, resumability, and how LanceDB's StreamingDataset fits in.
How ByteDance’s Volcano Engine Rebuilt Its AI Stack on Lance, From Data Lake to Agent Memory at 100K+ QPS
Volcano Engine rebuilt its AI data stack on Lance, cutting a seven-day pipeline to one day and powering agent memory with LanceDB at 100K+ QPS.
Make Handwritten Notes Searchable: Optimizing an OCR Pipeline with LanceDB
Learn how to build an OCR pipeline for handwritten medical notes using DSPy, GEPA, and LanceDB to manage images, labels, outputs, metrics, and retrieval.
Rebuilding the Data Foundation for Embodied AI with Lance: From Long Videos to Random-Access-Friendly Multimodal Samples
Lance turns long robotics videos into random-access multimodal training data with 1.7–6× faster reads and 42% lower storage use.
RaBitQ Gets Faster: Higher Recall, Lower Latency, Query-Time Control
How LanceDB's latest IVF_RQ improvements raise recall, cut p99 latency, and let teams tune vector search at query time with approx_mode.
📊 Lance vs Delta vs Iceberg, 🔗 Lance Blob V2 Late Materialization, 🤖 Stable-Worldmodel Research Platform
Benchmark Lance vs Delta vs Iceberg on S3 metadata performance, update blob rows without reading bytes, and train world models directly from object storage, plus upcoming events and enterprise and community updates.
From Messy PDFs to Verifiable Answers with LiteParse and LanceDB
Turn information-rich PDFs into a local, inspectable, searchable evidence store with LlamaIndex's LiteParse library and LanceDB.
Faster VLM Fine-Tuning With Materialized Model Features in LanceDB
How Lance format and LanceDB's Enterprise feature engineering platform make VLM fine-tuning faster by materializing expensive multimodal features once and training from those columns.
Lance Blob V2: Late Materialization for Large Binary Data in Spark
How late materialization in Lance Spark keeps large binary data as lightweight references through query plans, materializing bytes only on write.
Semantic Memory for Hermes Agent with LanceDB
Introducing a new LanceDB-backed memory plugin that gives Hermes Agent durable, semantic recall across sessions, with benchmarks and a hands-on remember/recall/forget walkthrough.
A Metadata Benchmark of Lance, Delta Lake, and Iceberg on S3
A Rust benchmark comparison of Lance, Delta Lake, and Apache Iceberg on S3 and S3 Express, and why Lance is optimized for object storage metadata.
Scalable Feature Engineering on Multimodal Datasets
How LanceDB uses the Lance format's flexible data evolution features to enable scalable feature engineering for multimodal datasets.
Stable-Worldmodel: A High Performance Platform for Reproducible World Model Research
Introducing stable-worldmodel, an open-source platform for reproducible world model research, evaluation, and benchmarking under visual and physical distribution shifts.
Reproducible Data Curation In The Multimodal Lakehouse
Learn how LanceDB turns raw multimodal data into reproducible, training-ready datasets with search, filtering, deduplication, sampling, and versioned curation workflows.
🌍 Lance-Backed World Model Platform, 🦆 Multimodal SQL with Lance DuckDB Extension, 💰 LanceDB vs OpenSearch Cost Breakdown
stable-worldmodel standardizes world model pipelines on Lance, DuckDB Lance extension adds native multimodal SQL, and LanceDB benchmarks 100M vectors at ~$779/month, plus upcoming events, enterprise updates, and community updates.
⚡Vector Search at 10B Scale, 📊 Lance Format Benchmarks, 🚗 AV Pipelines at Scale
Distributed vector search at 10B scale, more efficient storage with Lance format v2.2, and production AV pipelines simplified, plus upcoming events and community updates.
How LanceDB Accelerates Vector Search at 10 Billion Scale
How LanceDB applies distributed indexing, distributed query execution, HNSW centroid routing, and fast RaBitQ rotation to scale search to 10B vectors and beyond.
OpenSearch vs LanceDB for Vector Search: Query Cost and Infrastructure
Choosing a vector database usually comes down to a tradeoff between a full search service and an in-process library. This post showcases benchmarks that compare OpenSearch and LanceDB on the COCO 2017 images embedded with SigLIP. We measure ingestion throughput, query cost, storage layout, and overall infra cost.
Volcano Engine LAS's Lance-Based PB-Scale Autonomous Driving Data Lake Solution
How Bytedance Volcano Engine LAS (Lake for AI Service) leverages Lance as the core storage format, rapidly constructing a next-gen AI data lake to efficiently store, manage, and process multimodal data (text, images, audio/video).
Unifying the AV ML Stack: From Raw Data to Trained Model with LanceDB
A complete walkthrough of building an autonomous vehicle perception model training pipeline on top of LanceDB and the Multimodal Lakehouse.
Lance JSON Support: Why You Might Not Really Need Variant
Lance's JSONB storage, scalar indexing, data evolution, and full-text search already deliver what most users want from Variant — with explicit control, schema consistency, and no vendor lock-in.
Building A Storage Format For The Next Era of Biology
How Lance can serve as the foundation for AI on single-cell genomics atlases and a new generation for modeling in biology.
📄 Lance Blob V2, 🤗 Upload Lance Datasets to HF Hub, 🦞 LanceDB for OpenClaw's Memory
Lance Blob V2 introduces adaptive storage semantics, easily upload Lance datasets to Hugging Face Hub, and OpenClaw establishes LanceDB as a default memory layer for agents, plus community and enterprise updates.
Smart Parsing Meets Sharp Retrieval: Combining LiteParse and LanceDB
Build a structure-aware PDF QA agent with LiteParse, LanceDB, and Claude to answer complex questions over visually rich documents.
Lance Format v2.2 Benchmarks: Half the Storage, None of the Slowdown
Benchmarks that show how Lance format v2.2 cuts storage by 50%+, beats Parquet on compression, and delivers up to 68x faster blob reads — while preserving the scan and random access patterns that multimodal training depends on.
Make your SQL Workflows Multimodal With LanceDB × DuckDB
A hands-on walkthrough showing how LanceDB and DuckDB work together to query multimodal data in SQL, join against multiple tables, and materialize results back into LanceDB.
Agentic Coding as Community Stewardship
Agentic coding lets upstream maintainers turn ecosystem-wide mechanical updates into fast, contextual, low-friction contributions for downstream users.
One System, Many Workloads: Rethinking What "Multimodal" Means for AI
A practical definition of multimodal complexity, and how LanceDB’s Multimodal Lakehouse is built to address these challenges.
The Future of AI-Native Development is Local: Inside Continue's LanceDB-Powered Evolution
Discover how Continue revolutionized AI-native development with LanceDB's embedded TypeScript library, enabling lightning-fast semantic code search while maintaining complete developer privacy and offline capability.
Lance File Format 2.2: Taming Complex Data
Lance file format 2.2 introduces Blob V2, nested schema evolution, native Map type support, and additional compression and performance improvements for AI/ML data workloads.
Lance Blob V2: Making Multimodal Data a First-Class Citizen in the Lakehouse
How we redesigned blob storage in Lance to make multimodal data a first-class citizen, with four storage semantics (Inline, Packed, Dedicated, External) that automatically adapt to your workload.
Why LanceDB Is the Most Natural Memory Layer for OpenClaw
OpenClaw and similar personal autonomous agents need a local-first long-term memory layer. LanceDB fits that role with embedded deployment, filesystem-native storage, and multimodal retrieval.
OpenClaw + LanceDB + Seed 2.0: Turn Visual Ideas into Reality, Fast!
OpenClaw and similar personal autonomous agents need a local-first long-term memory layer. LanceDB fits that role with embedded deployment, filesystem-native storage, and multimodal retrieval.
Memory for OpenClaw: From Zero to LanceDB Pro
Benchmarking three OpenClaw memory plugins on the LOCOMO dataset
A Guide to Uploading Lance Datasets on the Hugging Face Hub
Build a multimodal Lance dataset, publish it to the Hub, and query the precomputed vector + FTS indexes in LanceDB, without needing to download the dataset locally.
Zero Shot Image Classification with Vector Search
Get about zero shot image classification with vector search. Get practical steps, examples, and best practices you can use now.
WeRide's Data Platform Transformation: How LanceDB Fuels Model Development Velocity
Discover how WeRide, a leading autonomous driving company, leveraged LanceDB to revolutionize their data platform, achieving 90x improvement in ML developer productivity and reducing data mining time from 1 week to 1 hour.
Training a Variational AutoEncoder from Scratch with Lance File Format
Train a Variational Autoencoder end‑to‑end using Lance for fast, scalable data handling. You’ll set up the dataset, build the VAE in PyTorch, and run training, sampling, and reconstructions.
Track AI Trends: CrewAI Agents & RAG
This article will teach us how to make an AI Trends Searcher using CrewAI Agents and their Tasks. But before diving into that, let's first understand what CrewAI is and how we can use it for these applications.
Tokens per Second Is NOT All You Need
Explore about tokens per second is not all you need. Get practical steps, examples, and best practices you can use now.
The Future of Open Source Table Formats: Apache Iceberg and Lance
Explore the future of open source table formats: apache iceberg and lance with practical insights and expert guidance from the LanceDB team.
The Case for Random Access I/O
One of the reasons we started the Lance file format and have been investigating new encodings is because we wanted a format with better support for random access.
LanceDB Raises $30M Series A to Build the Multimodal Lakehouse
We have closed another funding round to accelerate development of the Multimodal Lakehouse - a unified platform for AI data infrastructure.
SemanticDotArt: Rethinking Art Discovery with LanceDB
SemanticDotArt turns art discovery into a multimodal search experience, matching feelings, phrases, and images with LanceDB's hybrid retrieval.
Second Dinner's Secret Weapon: LanceDB-Powered RAG for Faster, Smarter Game Development
Discover how Second Dinner, creators of Marvel Snap, leveraged LanceDB Cloud to transform game development workflows, reducing prototyping time from months to hours and automating QA test generation with 81% better results.
Search Within an Image with Segment Anything
Get about search within an image with segment anything. Get practical steps, examples, and best practices you can use now.
Scalable Computer Vision with LanceDB & Voxel51
Explore about scalable computer vision with lancedb & voxel51. Get practical steps, examples, and best practices you can use now.
Rethinking Table File Paths with Uber: Lance’s Multi-Base Layout
A tour of Lance's file path design, and how Lance’s new multi-base layout enables multi-location datasets (such as Uber’s multi-bucket setup) with minimal metadata rewrites.
RAG Isn't One-Size-Fits-All: Here's How to Tune It for Your Use Case
Great RAG comes from a tight iteration loop. Learn how to systematically improve each layer of your RAG system using Kiln and LanceDB.
Python Package to convert image datasets to Lance type
Explore python package to convert image datasets to lance type with practical insights and expert guidance from the LanceDB team.
The Quest for One Million IOPS: Benchmarking Storage at LanceDB
Learn how LanceDB benchmarks storage and how we achieved one million disk reads per second.
November Feature Roundup
Explore November feature roundup with practical insights and expert guidance from the LanceDB team.
🛡️ Newly Knighted Lancelot, ▶️ TwelveLabs Semantic Video Recommendations, 🧠 Cognee's AI Memory Layer with LanceDB
Our September newsletter welcomes new Lancelot members, highlights TwelveLabs semantic video recommendations, Cognee’s AI memory layer, and shares the latest product and community updates.
🎨 Semantic.Art, 💾 Stable Lance 2.1, 🎥 Ray+LanceDB powers Netflix
Our October newsletter highlights Semantic.Art, Lance File 2.1, RaBitQ Quantization, upcoming events, latest product and community updates.
🛡️Lance Community Governance, Lance + Iceberg 🧊, Netflix’s Multimodal Search Demo 🔍
Our November newsletter highlights Lance community governance, a deep dive on Lance and Iceberg, a demo of Netflix's multimodal search, previous talk recordings, and the latest product and community updates.
June 2025: $30M Series A, Multimodal Lakehouse Launch & Product Updates
LanceDB's June 2025 newsletter covering latest company news, product updates, open source releases, and community highlights.
⚖️ Harvey’s Enterprise-Grade RAG on LanceDB, 💼 Dosu Case Study, Minimax&LumaLabs❤️Lance-Ray
Our August newsletter features a new case study with Dosu, recaps from events with Harvey and Databricks, and the latest product and community updates.
🦆 Lance x DuckDB SQL Retrieval, 🚗 Uber-Scale Storage, ⚡ 1.5M IOPS
Kicking off 2026 with Lance-native SQL retrieval via DuckDB, Uber-scale multi-bucket storage, 1.5M IOPS benchmarks, and continued OSS momentum across the Lance ecosystem.
🤗 Lance x Hugging Face, 🪾Git-Style Branching, 🏔️ Geospatial in Lance
Native Lance support on Hugging Face Hub, Git-style branching and shallow clone for AI data, and Arrow-native geospatial with R-Tree indexing, plus steady OSS and community momentum.
💾 Lance SDK v1.0.0, 🗓️ 1st Lance Community Sync, 🔍 Wikisearch
Our December newsletter highlights Lance SDK v1.0.0, our upcoming Lance community sync, Wikisearch demo, and the latest product and community updates.
Netflix’s Media Data Lake ❤️ LanceDB, CodeRabbit 💼 Case Study, Lance Namespace
Our August newsletter highlights LanceDB powering Netflix's Media Data Lake, a case study on CodeRabbit's AI-powered code reviews, and updates on Lance Namespace and Spark integration.
My Summer Internship Experience at LanceDB
I'm Raunak, a master's student at the University of Illinois, Urbana-Champaign. This summer, I had the opportunity to intern as a Software Engineer at LanceDB, an early-stage startup based in San Francisco.
My SIMD Is Faster than Yours
An untold story about how we make LanceDB vector search fast. Get practical steps and examples from 'My SIMD is faster than Yours'.
Multimodal Myntra Fashion Search Engine Using LanceDB
Build a multimodal fashion search engine with LanceDB and CLIP embeddings. Follow a step‑by‑step workflow to register embeddings, create the table, query by text or image, and ship a Streamlit UI.
What is the LanceDB Multimodal Lakehouse?
Introducing the Multimodal Lakehouse - a unified platform for managing AI data from raw files to production-ready features, now part of LanceDB Enterprise.
Multi Document Agentic RAG: a Walkthrough
Unlock about multi document agentic rag: a walkthrough. Get practical steps, examples, and best practices you can use now.
Modified RAG: Parent Document & Bigger Chunk Retriever
Get about modified rag: parent document & bigger chunk retriever. Get practical steps, examples, and best practices you can use now.
MemGPT: OS Inspired LLMs That Manage Their Own Memory
Explore about memgpt: os inspired llms that manage their own memory. Get practical steps, examples, and best practices you can use now.
Late Interaction & Efficient Multi-modal Retrievers Need More Than a Vector Index
Explore late interaction & efficient multi-modal retrievers need more than a vector index with practical insights and expert guidance from the LanceDB team.
Developers, Ditch the Black Box: Welcome to Continue
Remember flipping through coding manuals? Those quickly became relics with the rise of Google and Stack Overflow, a one-stop shop for developer queries.
Lance × Hugging Face: A New Era of Sharing Multimodal Data on the Hub
Announcing native read support for Lance format on Hugging Face Hub. You can now distribute your large multimodal datasets as a single, searchable artifact (including blobs, embeddings and indexes) all in one place!
Lance × DuckDB: SQL for Retrieval on the Multimodal Lakehouse Format
Use the Lance format as your lakehouse layer for retrieval, RAG and more, with the native Lance extension for DuckDB
Lance, Windows. Windows, Lance
It was Spring of 2012. After being an avid user for 2+ years, I finally decided to join Wes Mckinney and work on pandas full time.
Lance v2: A New Columnar Container Format
Explore lance v2: a new columnar container format with practical insights and expert guidance from the LanceDB team.
Productionalize AI Workloads with Lance Namespace, LanceDB, and Ray
Learn how to productionalize AI workloads with Lance Namespace's enterprise stack integration and the scalability of LanceDB and Ray for end-to-end ML pipelines.
Lance File 2.1 is Now Stable
The 2.1 file version is now stable, learn what that means for you and what's coming next.
Lance File 2.1: Smaller and Simpler
Explore lance file 2.1: smaller and simpler with practical insights and expert guidance from the LanceDB team.
Introducing Lance Data Viewer: A Simple Way to Explore Lance Tables
A lightweight open source web UI for exploring Lance datasets, viewing schemas, and browsing table data with vector visualization support.
Building the Future Together: Introducing Lance Community Governance
Announcing the formal governance structure for the Lance community, establishing clear pathways for contribution and leadership with a three-tier system of contributors, maintainers and PMC.
Manage Lance Tables in Any Catalog using Lance Namespace and Spark
Access and manage your Lance tables in Hive, Glue, Unity Catalog, or any catalog service using Lance Namespace with the latest Lance Spark connector.
Implementing Corrective RAG in the Easiest Way
Even though text-generation models are good at generating content, they sometimes need to improve in returning facts. This happens because of the way they are trained.
Hybrid Search: RAG for Real-Life Production-Grade Applications
Get about hybrid search: rag for real-life production-grade applications. Get practical steps, examples, and best practices you can use now.
Hybrid Search: Combining BM25 and Semantic Search for Better Results with Langchain
Have you ever thought about how search engines find exactly what you're looking for? They usually use a mix of matching specific words and understanding the meaning behind them.
Hybrid Search and Custom Reranking with LanceDB
Combine keyword and vector search for higher‑quality results with LanceDB. This post shows how to run hybrid search and compare rerankers (linear combination, Cohere, ColBERT) with code and benchmarks.
Reduce Hallucinations from LLM-Powered Agents Using Long-Term Memory
Understand about reduce hallucinations from llm-powered agents using long-term memory. Get practical steps, examples, and best practices you can use now.
Implement Contextual Retrieval and Prompt Caching with LanceDB
Unlock about implement contextual retrieval and prompt caching with lancedb. Get practical steps, examples, and best practices you can use now.
RAG with GRPO Fine-Tuned Reasoning Model
Explore rag with grpo fine-tuned reasoning model with practical insights and expert guidance from the LanceDB team.
GraphRAG: Hierarchical Approach to Retrieval-Augmented Generation
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Explore GraphRAG: hierarchical approach to retrieval-augmented-generation with practical insights and expert guidance from the LanceDB team.
GPU-Accelerated Indexing in LanceDB
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Speed up vector index training in LanceDB with CUDA or Apple Silicon (MPS). See how GPU‑accelerated IVF/PQ training compares to CPU and how to enable it in code.
How We Added Geospatial Support To Lance With No New Code
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How Lance's Arrow-native architecture enables first-class geospatial support through extension types, GeoDataFusion integration, and R-Tree indexing.
Building Semantic Video Recommendations with TwelveLabs and LanceDB
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Build semantic video recommendations using TwelveLabs embeddings, LanceDB storage, and Geneva pipelines with Ray.
LanceDB's Geneva: Scalable Feature Engineering
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Learn how to build scalable feature engineering pipelines with Geneva and LanceDB. This demo transforms image data into rich features including captions, embeddings, and metadata using distributed Ray clusters.
From BI to AI: A Modern Lakehouse Stack with Lance and Iceberg
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A comparison of where Iceberg and Lance sit in the modern lakehouse stack. We highlight emerging architectures that are bridging the worlds of analytics and AI/ML workloads using these two formats, while being built on the same data foundation.
Setup Real-Time Multimodal AI Analytics with Apache Fluss (incubating) and Lance
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Learn how to build real-time multimodal AI analytics by integrating Apache Fluss streaming storage with Lance's AI-optimized lakehouse. This guide demonstrates streaming multimodal data processing for RAG systems and ML workflows.
Columnar File Readers in Depth: Parallelism without Row Groups
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Explore columnar file readers in depth: column shredding with practical insights and expert guidance from the LanceDB team.
LanceDB's RaBitQ Quantization for Blazing Fast Vector Search
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Introducing RaBitQ quantization in LanceDB for higher compression, faster indexing, and better recall on high‑dimensional embeddings.
LanceDB WikiSearch: Native Full-Text Search on 41M Wikipedia Docs
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No more Tantivy! We stress-tested native full-text search in our latest massive-scale search demo. Let's break down how it works and what we did to scale it.
Efficient RAG with Compression and Filtering
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Discover about efficient rag with compression and filtering. Get practical steps, examples, and best practices you can use now.
Effortlessly Loading and Processing Images with Lance: a Code Walkthrough
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Working with large image datasets in machine learning can be challenging, often requiring significant computational resources and efficient data-handling techniques.
Designing a Table Format for ML Workloads
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Explore designing a table format for ML workloads with practical insights and expert guidance from the LanceDB team.
Custom Datasets for Efficient LLM Training Using Lance
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See about custom datasets for efficient llm training using lance. Get practical steps, examples, and best practices you can use now.
Creating a FinTech AI Agent From Scratch
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Explore fintech ai agent from scratch with practical insights and expert guidance from the LanceDB team.
Convert Any Image Dataset to Lance
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In our article, we explored the remarkable capabilities of the Lance format, a modern, columnar data storage solution designed to revolutionize the way we work with large image datasets in machine learning.
Columnar File Readers in Depth: Structural Encoding
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Deep dive into LanceDB's dual structural encoding approach - mini-block for small data types and full-zip for large multimodal data. Learn how this optimizes compression and random access performance compared to Parquet.
Columnar File Readers in Depth: Repetition & Definition Levels
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Explore columnar file readers in depth: repetition & definition levels with practical insights and expert guidance from the LanceDB team.
Columnar File Readers in Depth: Compression Transparency
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Explore columnar file readers in depth: compression transparency with practical insights and expert guidance from the LanceDB team.
Columnar File Readers in Depth: Column Shredding
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Explore columnar file readers in depth: column shredding with practical insights and expert guidance from the LanceDB team.
Columnar File Readers in Depth: Backpressure
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Streaming data applications can be tricky. When you can read data faster than you can process the data then bad things tend to happen. The various solutions to this problem are largely classified as backpressure.
Columnar File Readers in Depth: APIs and Fusion
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The API used to read files has evolved over time, from simple full table reads to batch reads and eventually to iterative record batch readers. Lance takes this a step further to return a stream of read tasks.
Chunking Techniques with Langchain and LlamaIndex
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In our last blog, we talked about chunking and why it is necessary for processing data through LLMs. We covered some simple techniques to perform text chunking.
Chunking Analysis: Which is the right chunking approach for your language?
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Explore chunking analysis: which is the right chunking approach for your language? with practical insights and expert guidance from the LanceDB team.
Chat with Your Stats Using Langchain Dataframe Agent & LanceDB Hybrid Search
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In this blog, we’ll explore how to build a chat application that interacts with CSV and Excel files using LanceDB’s hybrid search capabilities.
Netflix's Media Data Lake and the Rise of the Multimodal Lakehouse
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How Netflix built a Media Data Lake powered by LanceDB and the Multimodal Lakehouse to unify petabytes of media assets for machine learning pipelines.
Case Study: Meet Dosu - the Intelligent Knowledge Base for Software Teams and Agents
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How Dosu uses LanceDB to transform codebases into living knowledge bases with real-time search and versioning.
How Cognee Builds AI Memory Layers with LanceDB
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How Cognee uses LanceDB to deliver durable, isolated, and low-ops AI memory from local development to managed production.
Case Study: How CodeRabbit Leverages LanceDB for AI-Powered Code Reviews
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How CodeRabbit leverages LanceDB-powered context engineering turns every review into a quality breakthrough.
Building RAG on codebases: Part 2
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Building a Cursor-like @codebase RAG solution. Part 2 focuses on the generating embeddings and the retrieval strategy using a combination of techniques in LanceDB.
Building RAG on codebases: Part 1
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Building a Cursor-like @codebase RAG solution. Part 1 focuses on indexing techniques, chunking strategies, and generating embeddings in LanceDB.
Branching and Shallow Cloning in Lance: Towards a "Git for AI Data"
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A deep dive into how table formats handle version management for ML/AI experimentation, and how Lance unifies branching, tagging, and shallow clone on top of its multi-base architecture.
Better RAG with Active Retrieval Augmented Generation FLARE
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by Akash A. Get practical steps and examples from 'Better RAG with Active Retrieval Augmented Generation FLARE'.
Benchmarking Random Access in Lance
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In this short blog post we’ll take you through some simple benchmarks to show the random access performance of Lance format. Get practical steps and examples from 'Benchmarking random access in Lance'.
Inverted File Product Quantization (IVF_PQ): Accelerate Vector Search by Creating Indices
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Compress vectors with PQ and accelerate retrieval with IVF_PQ in LanceDB. The tutorial explains the concepts, memory savings, and a minimal implementation with search tuning knobs.
Benchmarking Cohere Rerankers with LanceDB
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Improve retrieval quality by reranking LanceDB results with Cohere and ColBERT. You’ll plug rerankers into vector, FTS, and hybrid search and compare accuracy on real datasets.
AnythingLLM's Competitive Edge: LanceDB for Seamless RAG and Agent Workflows
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Discover how AnythingLLM leveraged LanceDB's serverless architecture to eliminate vector database setup complexity, enabling seamless cross-platform RAG and agent workflows with zero configuration required.
Announcing Lance SDK 1.0.0: What This Milestone Means for the Community
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We’re excited to announce that the core Rust SDK and the Python and Java binding SDKs are graduating to version 1.0.0, alongside a new, community-driven release strategy.
Agentic RAG Using LangGraph: Build an Autonomous Customer Support Agent
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Build an autonomous customer support agent using LangGraph and LanceDB that automatically fetches, classifies, drafts, and responds to emails with RAG-powered policy retrieval.
Advanced RAG: Precise Zero-Shot Dense Retrieval with HyDE
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In the world of search engines, the quest to find the most relevant information is a constant challenge. Researchers are always on the lookout for innovative ways to improve the effectiveness of search results.
Accelerate Vector Search Applications Using OpenVINO & LanceDB
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We show how to use the CLIP from OpenAI for Text-to-Image and Image-to-Image searching. We’ll also do a comparative analysis of the PyTorch model, FP16 OpenVINO format, and INT8 OpenVINO format in terms of speedup.
A Primer on Text Chunking and Its Types
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Text chunking is a technique in natural language processing that divides text into smaller segments, usually based on the parts of speech and grammatical meanings of the words.
A Practical Guide to Training Custom Rerankers
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Explore a practical guide to training custom rerankers with practical insights and expert guidance from the LanceDB team.
A Practical Guide to Fine-Tuning Embedding Models
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Explore a practical guide to fine-tuning embedding models with practical insights and expert guidance from the LanceDB team.
Keep Your Data Fresh with CocoIndex and LanceDB
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Store a multimodal dataset of recipes in LanceDB, a multimodal lakehouse for AI, and keep it fresh with CocoIndex, a declarative data transformation framework for AI with incremental processing capabilities.
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🤖 LeRobot v0.7.0 on Lance, 🤝 ASOF Joins in DataFusion, 🔄 LLM Pretraining from One LanceDB Table

ChanChan Mao
•
November 12, 2026
•
Newsletter
Table of Contents
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🤖 LeRobot v0.7.0 Trains on Lance Tables Without Downloading

LeRobot v0.7.0 on Lance

The Hub now holds almost 300 TB of open robot data in LeRobot format, and LeRobot v0.7.0 trains on it without downloading. Built with the LanceDB team, it reads datasets stored as Lance tables with the original MP4s kept as blobs, so nothing is re-encoded and frames are read in place with a true global shuffle at local-disk speed. The LeRobotDataset API is unchanged.

Convert an existing dataset with lerobot-lance-convert and browse it in lerobot-dataset-viz. See the LanceDB section of the LeRobot dataset docs and the LanceDB LeRobot training guide.

Read more →

🤝 Giving Back to the Open Source We Build On

Giving Back to the Open Source We Build On

Camera frames and robot states recorded at different frequencies need an ASOF join: for each frame, the latest state at or before its timestamp. LanceDB engineers added ASOF JOIN to Apache DataFusion, the query engine behind LanceDB's SQL, so every DataFusion user gets it. It joins upstream work on LeRobot, Apache OpenDAL, CocoIndex, and ICU4X.

Read more →

🔄 A Practical LLM Pretraining Pipeline with LanceDB

A Practical LLM Pretraining Pipeline with LanceDB

Most pretraining pipelines write a new dataset at every stage, so changing block length or a filter means a rebuild. This walkthrough keeps raw text, dedup flags, and 2.43B GPT-2 tokens in one LanceDB table and packs sequences inside StreamingDataset at read time. Raw text is training-ready in 11 minutes, and GPT-2 124M trains at 3.18M tokens/s and 34.5% MFU.

Read more →

📺 Feature of the Week

Feature of the Week episodes 3-6

You can find all the videos in the Feature of the Week playlist. Check out the latest episodes:

📅 Upcoming Events

Fireside chat with You Liang, Dream Labs

Fireside Chat with You Liang, Co-Founder of Dream Labs — November 18, 2026 · 6pm PST · San Francisco, CA

LanceDB, Savant, and Encord are hosting a fireside chat with You Liang, co-founder of Dream Labs, whose Dream-1 World Action Model runs zero-shot on robots it has never seen. The conversation covers what it takes to generalize across robots and what a pay-as-you-go robot brain means for founders building in physical AI.

Register →

Par-Tee at re:Invent

Par-Tee at re:Invent — December 2, 2026 · 6pm PST · Las Vegas, NV

LanceDB is taking over the Chairman's Suite at Topgolf Las Vegas during re:Invent for an evening of food, drinks, and golf with people across AI, cloud, and infrastructure.

Register →

🌟 Open Source Releases

Project Description
Lance v13.0.0 – v14.0.2
Release notes		 • BM25F cross-field full-text search via a combined_fields query in Python and Java, with scoring for unindexed fragments (#7905, #8549, #8550, #9444)
• New MinHash LSH scalar index (experimental spec) for approximate set-similarity queries, exposed in Python and Java (#9076, #9114, #9965, #9966)
• Btree scalar indexes now store row addresses instead of row ids, so they work alongside a fragment-reuse index on stable-row-id datasets; existing segments still read (#9481). Scalar index segments are also pruned by fragment scope (#9449)
• Reads build page schedulers only for the pages they touch: a cold IVF prewarm of a 118 GB index on a 1B-row benchmark dropped from over an hour (timed out at 88%) to 154 s (#9278)
• All columns' reads in a scheduling step go out as one I/O request, cutting an 8-row random take on a 4.3M-row S3 table from ~580 to ~350 GETs (#9473). SQL ORDER BY … LIMIT reads only the sort columns until the top-k is known (#9750)
LanceDB v0.40.0 – v0.41.0
Release notes		 • Materialized views defined by SQL: a view is now a stored SELECT … FROM query with WHERE, LIMIT, GROUP BY, and Functions in FROM position that return one row per element. Auto-refresh can be configured when creating a view or declaring a computed column (#4190, #4222, #4621, #4607)
• New index builders: Zonemap, NGram, BloomFilter, and RTree index builders for scalar columns, plus FTS indexes on JSON fields (#4199, #4205, #4219)
• Blob handling in Node.js: accepts ArrayBuffer, Blob/File, and URL as blob inputs; new blobMode returns blob bytes directly from queries; BlobFile adds seek, tell, bounded read, readRanges, and close (#4313, #4353, #4348)
• Breaking: embedding config from table metadata is no longer trusted: SentenceTransformerEmbeddings.trust_remote_code defaults to False, and remote code or custom endpoints restored from a table need explicit approval via registry.allow_remote_code() or registry.allow_endpoint(), so a crafted table can't run model code or redirect API keys (#4550)
• API renames: MemWAL APIs are now RTE (realtime engine); list_databases and table/namespace listings return lazy iterators (#4598, #4599)
lance-namespace-impls v0.4.2
Release notes		 • Hive2Namespace and Hive3Namespace expose their metastore client pools, so integrations like lance-spark run metastore work through the namespace's configured pool (#155)
lance-spark v0.8.0
Release notes		 • Distributed scalar index builds: ZoneMap, Bitmap, Label List, NGram, Bloom Filter, and RTree indexes build in parallel across Spark executors, and FTS indexes build as independent segments (#740, #701)
• OPTIMIZE INDEX and distributed REFRESH INDEX SQL commands for incremental index maintenance (#745, #822)
• Read tags with VERSION AS OF and named branches as table.branch_{name} or .option("branch", …) (#773, #776)
• OpenTelemetry support and configurable cache backends (#741, #767)

🫶 Community Contributions

Thank you to contributors from ByteDance, Adobe, Netflix, Pinterest, Baidu, Tencent, QuestDB for improvements across storage, indexing, query execution, distributed processing, and ecosystem integrations in LanceDB, Lance, and the broader ecosystem.

Notable contributions this month:

  • @a-erofeev — Added Hamming distance and f64 centroids support in streaming coreset k-means, expanding distance metric options for vector indexing
  • @sbrunk — Implemented BM25F cross-field full-text search with combined_fields query support across Python and Java bindings
  • @amunra — Merged Bitmap index segments instead of rescanning the dataset, and bounded segment-merge prefetch to one scan's byte budget
  • @zhangyue19921010 — Implemented distributed execution of optimize indices and exposed MinHash LSH index support across Python and Java
  • @dshepelev15 — Optimized dataset opens by decoding column metadata lazily from tail reads and caching vector index ownership masks
  • @jonasdedden — Added SQL IS [NOT] DISTINCT FROM null-safe comparison and optimized exact double literal filtering against Float32 columns
  • @LuciferYang — Fixed nested fixed-size-list encoding to use each layer's dimension, and hardened the IVF build path against out-of-range partition ids and shuffle-stage panics
  • @ddupg — Built distributed scalar index builds in lance-spark (ZoneMap, Bitmap, NGram, Bloom Filter, RTree, and more) and fragment-scoped pruning of scalar index segments
  • @ChenSammi — Wrote the guide to configuring Apache Ozone as an object store for Lance
  • @beautygua — Added PCA model and vector pre-transform support for dimensionality reduction in vector indexing pipelines

A heartfelt thank you to our community contributors of Lance and LanceDB this past month:

@a-erofeev • @aaditya1273 • @abhisheklearn12 • @adenzhou1350 • @ali2arslan • @amunra • @antio2 • @arcusbuilds • @avanish-garg • @aviralsaxena16 • @ayushexel • @beautygua • @beinan • @bilalatique • @breken-ai • @canyang25 • @chensammi • @chenyu-x • @chrikrah • @dawid0309 • @ddupg • @dentiny • @devjoinedthechat • @devyrpauli • @dshepelev15 • @dsingh-exa • @everysympathy • @fangbo • @gabriel39 • @ganesh1729-ui • @hfutatzhanghb • @ishita-singh-12 • @ivscheianu • @j7nhai • @jackylee-ch • @james-rms • @jaypokale • @jayzhou2309 • @jerryjch • @joaquinhuigomez • @jonasdedden • @kamronis • @kangnan-li • @karthiksenv • @kevinandrewdong • @leonsgp43 • @leoreeyang • @lichuang • @lindseyz1205 • @luciferyang • @majin1102 • @maswin • @mikemikimike • @mikewhb • @mohammadhijjawi97 • @ningsh7 • @nitish-1303 • @original4422 • @pcbeingused333 • @po-et • @primorlee • @princejain756 • @raphaelfakhri • @risto0211 • @rominparekh • @rudra-g-23 • @sbrunk • @sezruby • @shoemoney • @siddarthareddy8 • @simpleqt • @slachiewicz • @sunyuechi • @tandede • @terapyon • @timsaucer • @tyagiquamar • @ump45nose • @vatharevinayak • @venkata91 • @vgrigoriu • @winklemad • @witblue6 • @xuqianjin-stars • @yanghua • @yhz5613813 • @yuvalif • @zehiko • @zhangyue19921010 • @zhuoxi2000 • @ziwenzhang • @zy-kkk

🤝 Lance Community Sync Recap

The October 22 sync covered the Blob v2 spec heading to a final PMC vote, a release candidate up for voting, and plans to expand the getting-started docs beyond PyLance to LanceDB, Spark, and DataFusion. The group also discussed a proposal for filtered (partial) vector indexes that use Substrait for filter expressions, along with clustering work and the challenges of managing compaction, FRIs, and index maintenance at scale.

The next Lance Community Sync will take place on Thursday, November 19 @ 9am PT.

ChanChan Mao
Developer Relations @ LanceDB
GitHub
Linkedin

Augmetec helps investigators find critical evidence faster with LanceDB Enterprise

Augmetec
•
October 12, 2026
augmetec-finds-critical-evidence-faster

🤖 LeRobot Trains on Lance, 🦾 Mining Robot Fleet Data Demo, 🔍 Vector Search at 10B Scale

ChanChan Mao
•
October 7, 2026
newsletter-september-2026

Giving Back to the Open Source We Build On

Xuanwo
Taylor Smith
•
September 21, 2026
giving-back-to-open-source