The best onyx alternatives

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…

• you need a detected license — this one reports GNU Affero General Public License v3.0
• you specifically need agent or assistant

Shares ai, chatgpt, llm, rag with onyx.

open-webui

open-webui/open-webui

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

Choose open-webui if…

• you want the more widely starred option (157.8k)
• you specifically need llm-webui or llms

Shares ai, llm, llm-ui, rag with onyx.

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…

• you need a detected license — this one reports Apache License 2.0
• you want the more widely starred option (79.0k)
• you specifically need agent or deepseek

Shares ai, chatgpt, llm, python with onyx.

Open-Assistant

LAION-AI/Open-Assistant

OpenAssistant is a chat-based assistant that understands tasks, can interact with third-party systems, and retrieve information dynamically to do so.

Choose Open-Assistant if…

• you need a detected license — this one reports Apache License 2.0
• you specifically need assistant or discord-bot

Shares ai, chatgpt, nextjs, python with onyx.

Langchain-Chatchat

chatchat-space/Langchain-Chatchat

Langchain-Chatchat（原Langchain-ChatGLM）基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Llama) RAG and Agent app with langchain

Choose Langchain-Chatchat if…

• you need a detected license — this one reports Apache License 2.0
• you specifically need chatbot or chatchat

Shares chatgpt, llm, rag with onyx.

langchain

langchain-ai/langchain

The agent engineering platform.

Choose langchain if…

• you need a detected license — this one reports MIT License
• you want the more widely starred option (149.0k)
• you specifically need agents or ai-agents

Shares ai, chatgpt, llm, python with onyx.

mem0

mem0ai/mem0

The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.

Choose mem0 if…

• you need a detected license — this one reports Apache License 2.0
• you want the more widely starred option (68.4k)
• you specifically need agentic-memory or agentic-memory-system

Shares ai, chatgpt, llm, python with onyx.

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…

• you need a detected license — this one reports GNU Affero General Public License v3.0
• you specifically need agent or astrbot

Shares ai, chatgpt, llm, python with onyx.

langgraph

langchain-ai/langgraph

Build resilient agents.

Choose langgraph if…

• you need a detected license — this one reports MIT License
• you specifically need agents or ai-agents

Shares ai, chatgpt, llm, python with onyx.

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 specifically need api or chatbot

Shares ai, chatgpt, llm, rag with onyx.

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 something your agent can install directly rather than a library to wire up yourself
• you specifically need agent or agentic

Shares ai, llm, rag, vector-search with onyx.

AdalFlow

SylphAI-Inc/AdalFlow

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

Choose AdalFlow if…

• you need a detected license — this one reports MIT License
• you prefer a smaller, narrower project to a large one
• you specifically need agent or auto-prompting

Shares ai, information-retrieval, llm, python with onyx.