Direct VoyageAI `compute_source_embeddings()` calls reject `list[str]` and NumPy text batches before reaching the provider, although both belong to the declared `TEXT` input type. For example, `["first", "second"]` raises `ValueError: Input type <class 'list'> not allowed with text model.` Normalize these containers to a list before the existing string-entry validation. The regression cases exercise the public embedding API with a stub provider: input order, list/NumPy batches, Arrow controls, empty batches, and rejection of non-text entries and ordinary two-dimensional arrays. The VoyageAI integration page now documents the accepted text containers. Verified on current main `7b3ba4c` with a locally compiled native extension (0.41.0b7, Python 3.12.12): - VoyageAI suite: 7 failed / 20 passed before the fix; 27 passed afterward. - Adjacent embedding suite: 13 passed, 4 skipped, 8 slow cases deselected. - Python CI's pinned Ruff 0.9.9 lint/format checks pass; configured Pyright reports zero errors/warnings; all applicable pre-commit hooks pass. The provider is stubbed; no live Voyage API request or model-quality evaluation was performed. AI disclosure: I used Codex for investigation, implementation, tests, review, and drafting this description.
The Multimodal Lakehouse for AI
How to Install ✦ Detailed Documentation ✦ Tutorials and Recipes ✦ Contributors
The ultimate multimodal data platform for AI/ML applications.
LanceDB is designed for fast, scalable, and production-ready vector search. It is built on top of the Lance columnar format. You can store, index, and search over petabytes of multimodal data and vectors with ease. LanceDB is a central location where developers can build, train and analyze their AI workloads.
Demo: Multimodal Search by Keyword, Vector or with SQL
Star LanceDB to get updates!
Key Features:
- Fast Vector Search: Search billions of vectors in milliseconds with state-of-the-art indexing.
- Comprehensive Search: Support for vector similarity search, full-text search and SQL.
- Multimodal Support: Store, query and filter vectors, metadata and multimodal data (text, images, videos, point clouds, and more).
- Advanced Features: Zero-copy, automatic versioning, manage versions of your data without needing extra infrastructure. GPU support in building vector index.
Products:
- Open Source & Local: 100% open source, runs locally or in your cloud. No vendor lock-in.
- Cloud and Enterprise: Production-scale vector search with no servers to manage. Complete data sovereignty and security.
Ecosystem:
- Columnar Storage: Built on the Lance columnar format for efficient storage and analytics.
- Seamless Integration: Python, Node.js, Rust, and REST APIs for easy integration. Native Python and Javascript/Typescript support.
- Rich Ecosystem: Integrations with LangChain 🦜️🔗, LlamaIndex 🦙, Apache-Arrow, Pandas, Polars, DuckDB and more on the way.
How to Install:
Follow the Quickstart doc to set up LanceDB locally.
API & SDK: We also support Python, Typescript and Rust SDKs
| Interface | Documentation |
|---|---|
| Python SDK | https://lancedb.github.io/lancedb/python/python/ |
| Typescript SDK | https://lancedb.github.io/lancedb/js/globals/ |
| Rust SDK | https://docs.rs/lancedb/latest/lancedb/index.html |
| REST API | https://docs.lancedb.com/api-reference/rest |
Join Us and Contribute
We welcome contributions from everyone! Whether you're a developer, researcher, or just someone who wants to help out.
If you have any suggestions or feature requests, please feel free to open an issue on GitHub or discuss it on our Discord server.
Check out the GitHub Issues if you would like to work on the features that are planned for the future. If you have any suggestions or feature requests, please feel free to open an issue on GitHub.

