txtai
All-in-one embeddings database for semantic search and RAG
txtai is profiled here as a LLM tool for engineering teams. Read about features, pricing, and how it compares to related options in the tools directory.
Description
txtai is an open-source embeddings database created by David Mezzetti of NeuML. It combines vector indexes with SQL filtering and an optional graph component in a single package, then layers retrieval, pipelines, and workflows on top so semantic search and RAG run without external services. Everything works locally with open models, which keeps prototypes self-contained and inexpensive to operate. Built-in pipelines for summarization, transcription, and translation chain together into workflows that run alongside the search index. Indexes persist to local disk or cloud storage and reload without a separate database server running.
Key Capabilities:
Embeddings database uniting vector search with SQL filtering
Built-in pipelines for transcription, translation, and summarization
Retrieval-augmented generation workflows over indexed content
Graph component for relationship-aware search
Local execution with Hugging Face and other open models
Apache 2.0 license with Python and API access
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- Perplexity Sonar API
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- AI21 Labs
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- Instructor
Structured outputs from LLMs with validation built in
- Tecton
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- Feast
Open-source feature store for production machine learning