Odysseus provides a self hosted AI workspace with chat, agents, tools, model serving, email, and research.
FreeOpen source
24 alternativesOnyx
Onyx provides open-source AI chat that can work with different language models.
About Onyx
Onyx is a knowledge and context layer for teams and AI agents. It connects to 50+ applications to index data with metadata and permissions, making it available for chat, search and research. It works with self-hosted and proprietary language models and embedding models, which can also run locally. It supports custom agents, web search, external actions through MCP, code execution in a sandbox, generated artifacts, voice interaction, and access from web, desktop, Slack and Discord with shared permissions. Self-hosted deployment keeps the document index, database and processing in self-contained services, while use of external LLM providers, search services and connected apps involves external processing.
Key features
- Indexes knowledge from 50+ connected applications with metadata and permissions
- AI chat compatible with self-hosted and proprietary LLM providers
- Build custom agents with selected knowledge subsets and instructions
- Augment answers with live web search and web crawler
- Execute code and handle artifacts in secure sandbox
- Take actions in external applications via MCP integrations
Best for: Teams that want AI chat and agents over internal application knowledge with self-hosted processing.
Good for
- Self-hosted deployment where index, database and processing stay in self-contained services
- Works with self-hosted and proprietary LLM and embedding models, including local operation
- Applies source permissions across web, desktop, Slack and Discord access
Onyx at a glance
- Website
- github.com/onyx-dot-app/onyx
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Onyx alternatives
Tools and sites you could use instead, ranked by how closely they match.
Enclave explores a virtual world for AI companionship and social interaction.
Open source
24 alternatives
SillyTavern is a frontend for users working with large language models.
Open source
24 alternatives
chatbot-ui provides an AI chat interface for working with different models.
Open source
24 alternatives
NextChat is an AI chat assistant client that supports named language models and is available on web and several desktop and mobile platforms.
Open source
24 alternatives
Chatbox brings several AI models into one app for chat and work using user supplied API keys.
Popular in AI Chatbots & Assistants
Well-known listings from the same topic.
Lumolumo.proton.meMicrosoft Copilotcopilot.microsoft.comLearn Aboutlearning.google.com/experiments/learn-aboutEidoloneidolonai.comFlowHuntflowhunt.ioPine AI19pine.ai
Onyx FAQ
How does Onyx work?
It pulls data with metadata and permissions from connected sources and ingests it into an internal representation for search and other downstream uses.
Which language models does it support?
All major providers, including self-hosted options like Ollama, LiteLLM and vLLM, and proprietary options like Anthropic, OpenAI and Gemini.
How is organizational data handled?
It offers air-gappable self-hosted deployment where the index, database and processing run in self-contained services, with a choice of embedding model and LLM provider.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.