Best Alternatives to LlamaIndex

RAG data framework — 300+ packages. Compare 10 similar free AI tools.

1. LLaMA-Factory — Zero-code fine-tuning Web UI — 40K+ stars (Free: Apache 2.0)
2. LangChain — LLM orchestration — 700+ integrations (Free: MIT)
3. Llama 3.x — Best all-around open LLM — 8B to 405B (Free: Fully open; 128K context)
4. Obsidian Copilot — Vault-wide RAG inside Obsidian — 50+ LLM providers (Free: Free plugin; bring your API key)
5. Obsidian Copilot — Vault-wide RAG inside Obsidian — 50+ LLM providers, 3.2K stars; bring your own API key (Free: Free; BYOK)
6. Ragas — RAG evaluation — faithfulness, precision, recall metrics (Free: Apache 2.0)
7. Ollama — Run 100+ LLMs locally from the terminal — completely free (Free: Free; 100+ models locally)
8. GPTCache — Open-source semantic LLM cache — 61–69% hit rate, 97%+ accuracy, saves $2K+/day (Free: Open source; self-hosted)
9. Hugging Face — GitHub of ML — 500K+ models, free Spaces, ZeroGPU (Free: Free Hub, inference credits, CPU Spaces, H200 ZeroGPU)
10. Langfuse — Framework-agnostic LLM tracing — generous free tier, European privacy (Free: Free self-host; cloud free tier)

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