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FastGPT alternatives

labring/FastGPT (30k stars, +35 this week): FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data… Why it matters: useful plumbing for shipping LLM-powered features.

Below are 12 other LLM tooling repos tracked by OSS Radar that share at least two GitHub topics with FastGPT, 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. langgenius/dify

    +126/wkest.

    Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Why it matters: useful plumbing for shipping LLM-powered features.

    158k stars · TypeScript · shared topics: agent, claude, deepseek, llm, mcp, nextjs, openai, workflow

  2. 2. diegosouzapw/OmniRoute

    +553/wkest.

    Never stop coding. Free MIT AI gateway: one endpoint, 359 providers (150+ free), 1200+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek… Why it matters: useful plumbing for shipping LLM-powered features.

    76k stars · TypeScript · shared topics: claude, deepseek, mcp, openai, qwen

  3. 3. headroomlabs-ai/headroom

    +266/wkest.

    Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. Why it matters: useful plumbing for shipping LLM-powered features.

    75k stars · Python · shared topics: agent, llm, mcp, openai, rag

  4. 4. unslothai/unsloth

    +84/wkest.

    Local UI to run and train LLMs and diffusion models. Supports GGUF, MLX, Qwen3.8, DeepSeek-V4, MiniMax-H3, Gemma 4, FLUX and more. Why it matters: useful plumbing for shipping LLM-powered features.

    78k stars · Python · shared topics: agent, deepseek, llm, openai, qwen

  5. 5. decolua/9router

    +77/wkest.

    Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Why it matters: useful plumbing for shipping LLM-powered features.

    31k stars · JavaScript · shared topics: claude, deepseek, llm, openai, qwen

  6. 6. lobehub/lobehub

    +56/wkest.

    🤯 LobeHub is your Chief Agent Operator, organizing your agents into 7×24 operations by hiring, scheduling, and reporting on your entire AI… Why it matters: useful plumbing for shipping LLM-powered features.

    83k stars · TypeScript · shared topics: agent, claude, deepseek, mcp, openai

  7. 7. dyad-sh/dyad

    +42/wkest.

    Local, open-source AI app builder for power users ✨ v0 / Lovable / Replit / Bolt alternative 🌟 Star if you like it! Why it matters: useful plumbing for shipping LLM-powered features.

    22k stars · TypeScript · shared topics: deepseek, llm, nextjs, openai, qwen

  8. 8. langbot-app/LangBot

    +35/wkest.

    Bots for Discord Slack LINE Telegram Matrix e.g. Integrated with ChatGPT(GPT), DeepSeek, Dify, n8n, Langflow, Coze, Claude, Gemini, GLM… Why it matters: useful plumbing for shipping LLM-powered features.

    18k stars · Python · shared topics: agent, deepseek, llm, openai, rag

  9. 9. jnMetaCode/agency-agents-zh

    +28/wkest.

    🎭 277 个即插即用的 AI 专家角色 — 支持 Claude Code/Cursor/Copilot 等 20 种工具，覆盖工程/设计/营销/金融等 20 个部门。含 64 个中国市场原创智能体（小红书/抖音/微信/飞书/钉钉/Qt 上位机/机械设计）。 Why it matters: useful plumbing for shipping LLM-powered features.

    21k stars · Shell · shared topics: claude, deepseek, llm, qwen, workflow

  10. 10. Tencent/WeKnora

    +553/wkest.

    Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki. Why it matters: useful plumbing for shipping LLM-powered features.

    34k stars · Go · shared topics: agent, llm, openai, rag

  11. 11. can1357/oh-my-pi

    +224/wkest.

    ⌥ Coding agent with the IDE wired in. Built by Stencil Labs. Why it matters: useful plumbing for shipping LLM-powered features.

    35k stars · TypeScript · shared topics: claude, llm, mcp, openai

  12. 12. open-webui/open-webui

    +175/wkest.

    User-friendly AI Interface (Supports Ollama, OpenAI API, ...). Why it matters: useful plumbing for shipping LLM-powered features.

    156k stars · Python · shared topics: llm, mcp, openai, rag

More: all trending LLM tooling repos · compare FastGPT with the top 2