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txtai is an all-in-one open-source embeddings database and semantic search platform that brings together vector indexing, text embeddings, and retrieval-augmented generation (RAG) in a unified framework. Built with Python, txtai enables building AI-powered search applications, knowledge bases, and LLM workflows with zero external dependencies. It supports multiple backends (Transformers, Sentence Transformers, ONNX), provides a full REST API, and includes built-in workflows for content processing, translation, and summarization. With 9k+ stars and Apache-2.0 license, txtai is trusted for production RAG deployments.