The best core alternatives

langchain

langchain-ai/langchain

The agent engineering platform.

Choose langchain if…

• MIT License suits your use better than GNU General Public License v3.0
• you want the more widely starred option (148.9k)
• you want the more recently updated codebase
• you specifically need agents or ai-agents

Shares ai, framework, llm, python with core.

AstrBot

AstrBotDevs/AstrBot

AI Agent Assistant & development framework that integrates lots of IM platforms, LLMs, plugins and AI feature, and can be your openclaw alternative. ✨

Choose AstrBot if…

• GNU Affero General Public License v3.0 suits your use better than GNU General Public License v3.0
• you want the more widely starred option (45.8k)
• you want the more recently updated codebase
• you specifically need astrbot or chatgpt

Shares agent, ai, chatbot, docker with core.

langgraph

langchain-ai/langgraph

Build resilient agents.

Choose langgraph if…

• MIT License suits your use better than GNU General Public License v3.0
• you want the more widely starred option (44.4k)
• you want the more recently updated codebase
• you specifically need agents or ai-agents

Shares ai, framework, llm, python with core.

quivr

The-Vibe-Company/quivr

Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: PGVector, Faiss. Any Files. Anyway you want.

Choose quivr if…

• you want the more widely starred option (39.6k)
• you want the more recently updated codebase
• you specifically need api or chatgpt

Shares ai, chatbot, docker, framework with core.

khoj

khoj-ai/khoj

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.

Choose khoj if…

• GNU Affero General Public License v3.0 suits your use better than GNU General Public License v3.0
• you want the more widely starred option (38.0k)
• you specifically need chat or chatgpt

Shares agent, ai, assistant, llm with core.

AdalFlow

SylphAI-Inc/AdalFlow

AdalFlow: The library to build & auto-optimize LLM applications.

Choose AdalFlow if…

• MIT License suits your use better than GNU General Public License v3.0
• you want the more recently updated codebase
• you specifically need auto-prompting or bm25

Shares agent, ai, chatbot, framework with core.

WeKnora

Tencent/WeKnora

Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki.

Choose WeKnora if…

• you would rather work in Go than Python
• you want the more widely starred option (36.4k)
• you want the more recently updated codebase
• you specifically need agentic or dsh-plugin

Shares agent, ai, chatbot, llm with core.

MaxKB

1Panel-dev/MaxKB

🔥 MaxKB is an open-source platform for building enterprise-grade agents. 强大易用的开源企业级智能体平台。

Choose MaxKB if…

• you want the more widely starred option (23.1k)
• you want the more recently updated codebase
• you specifically need agentic-ai or deepseek-r1

Shares agent, chatbot, llm with core.

deer-flow

bytedance/deer-flow

An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.

Choose deer-flow if…

• MIT License suits your use better than GNU General Public License v3.0
• you want the more widely starred option (84.9k)
• you want the more recently updated codebase
• you specifically need agentic or agentic-framework

Shares agent, ai, llm, python with core.

unsloth

unslothai/unsloth

Local UI to run and train LLMs and diffusion models. Supports GGUF, MLX, Qwen3.8, DeepSeek-V4, MiniMax-H3, Gemma 4, FLUX and more.

Choose unsloth if…

• Apache License 2.0 suits your use better than GNU General Public License v3.0
• you want the more widely starred option (79.0k)
• you want the more recently updated codebase
• you specifically need chatgpt or deepseek

Shares agent, ai, llm, python with core.

headroom

headroomlabs-ai/headroom

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

Choose headroom if…

• Apache License 2.0 suits your use better than GNU General Public License v3.0
• you want the more widely starred option (78.7k)
• you want the more recently updated codebase
• you specifically need anthropic or claude-code

Shares agent, ai, llm, mcp with core.

agentscope

agentscope-ai/agentscope

Build and run agents you can see, understand and trust.

Choose agentscope if…

• Apache License 2.0 suits your use better than GNU General Public License v3.0
• you want the more widely starred option (35.3k)
• you want the more recently updated codebase
• you specifically need large-language-models or llm-agent

Shares agent, chatbot, llm, mcp with core.