FastGPT
China's most popular open-source knowledge base + AI workflow platform
- License
- FastGPT Open Source License (modified Apache 2.0)
- Deploy difficulty
- Medium
- GitHub stars
- 28.1k
- Last commit
- 1d ago
Latest
v4.14.20 7.1k forks
187 open issues Synced 2026-05-17 What FastGPT is#
FastGPT is one of the most popular open-source LLM application platforms in China — similar in scope to Dify but more invested in knowledge-base quality. Built-in chunking strategies (QA split, question augmentation, long-context summarization) outperform generic setups on Chinese documents.
Role in a support stack#
- The central brain for support knowledge — SOPs, product docs, historical tickets
- Consumed by Chatwoot, LibreChat or WeChat bots via OpenAI-compatible API
- Doubles as an agent-facing copilot (similar to AnythingLLM but more capable)
Key features#
- Multiple chunking strategies plus parent-child retrieval
- Visual workflow nodes — HTTP, code, SQL
- Team workspaces and permissions
- Commercial cloud edition kept in sync with the open source build
Strengths
- Excellent Chinese docs and active local community
- Rich chunking strategies — QA split, question augmentation, auto-summarization
- Visual workflow builder with many nodes
- OpenAI-compatible API for any frontend to consume
Trade-offs
- License restricts SaaS resale
- Multiple services (MongoDB + Postgres + vector DB)
- Debugging complex workflows lags behind code frameworks
Best for
- Chinese-first knowledge base + AI support projects
- Teams that need "doc Q&A + auto-routing" fast