head to head · open source
AnythingLLM vs FastGPT
AnythingLLM has 66,141 GitHub stars, 7,347 forks, 311 open issues and last shipped yesterday. FastGPT has 29,682 stars, 7,319 forks, 172 open issues and last shipped yesterday. AnythingLLM leads on adoption by 123% (66,141 vs 29,682 stars). AnythingLLM is written in JavaScript under MIT; FastGPT is written in TypeScript under a custom or non-standard licence. AnythingLLM has attracted 11% as many forks as stars, FastGPT 25%. FastGPT was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| AnythingLLM | FastGPT | |
|---|---|---|
| GitHub stars | ★ 66K | ★ 30K |
| License | MIT | Custom / other |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 7.3K | ⑂ 7.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick AnythingLLM if
- You weight community size — 66K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick FastGPT if
- You want the FastGPT feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and FastGPT fits your workflow better
About AnythingLLM
AnythingLLM is a local first AI application that enables users to chat with their documents using any large language model (LLM), local or cloud hosted. It runs as a self hosted service—by default in Docker—and provides a complete interface for document ingestion, agent orchestration, multi user access, and workflow automation without requiring external cloud dependencies. The project lives in the local AI and AI interaction ecosystem, targeting users who want full control over their data and model selection.
read the full AnythingLLM overview →
About FastGPT
FastGPT is an open source AI knowledge base platform built on large language models (LLMs). It provides integrated tools for data ingestion, vector retrieval (RAG), and visual workflow orchestration, enabling users to construct and deploy question answering applications without writing extensive backend code. The platform runs on Next.js and supports integration with multiple LLM providers including OpenAI, Claude, DeepSeek, Qwen, and others.
read the full FastGPT overview →
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Frequently asked questions
Is AnythingLLM or FastGPT more popular?
AnythingLLM has 66,141 GitHub stars and FastGPT has 29,682. AnythingLLM has the larger community by that measure.
Are AnythingLLM and FastGPT free?
Both are open source. AnythingLLM is licensed under MIT, and FastGPT has no licence declared in this registry. Both are free to self-host.
What is the difference between AnythingLLM and FastGPT?
AnythingLLM is written in JavaScript and FastGPT in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, AnythingLLM or FastGPT?
Choose AnythingLLM if you want the larger community (66,141 stars) or its MIT licence terms. Choose FastGPT if its feature set, stack or Custom / other licence fits better. Both are self-hostable.