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LEANN alternatives

StarTrail-org/LEANN (13k stars, +166 this week): [MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN.

Below are 4 other RAG / vector repos tracked by OSS Radar that share at least two GitHub topics with LEANN, ordered by how many topics overlap, then by stars gained in the last 7 days. Topic overlap means a similar problem space, not a drop-in replacement, so check each project's README.

  1. 1. VectifyAI/PageIndex

    +463/wk

    PageIndex: Document Index for Vectorless, Reasoning-based RAG.

    40k stars · Python · shared topics: AI, LLM, RAG, retrieval augmented generation, vector database · PageIndex alternatives

  2. 2. infiniflow/ragflow

    +419/wk

    RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a…

    93k stars · Go · shared topics: AI, RAG, retrieval augmented generation · ragflow alternatives

  3. 3. kividbio/kividb

    +415/wk

    A fast, multi-threaded Redis® and Valkey alternative written in Rust: drop-in compatible, with full-text and vector search built in.

    673 stars · Rust · shared topics: vector database, vector search

  4. 4. opendataloader-project/opendataloader-pdf

    +288/wk

    PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.

    30k stars · Java · shared topics: AI, RAG · opendataloader-pdf alternatives

More rising RAG / vector repos

Only 4 tracked repos share at least two GitHub topics with LEANN, so here are the RAG / vector repos gaining the most stars this week. They sit in the same category but don't share its topics, so treat them as related projects rather than alternatives.

  • HKUDS/DeepTutor +1.8k/wk: DeepTutor: Lifelong Personalized Tutoring. https://deeptutor.info/.
  • ConardLi/garden-skills +256/wk: ConardLi's open-source Skills collection, featuring web design, knowledge retrieval, image generation, and more.

More: all trending RAG / vector repos · trending AI repos · trending LLM repos · trending Ollama repos · trending Python repos · compare LEANN with the top 2 · alternatives to other trending repos