Onyx

Onyx: Open-Source AI Knowledge Assistant

Onyx is Open-source AI chat platform (formerly known as Danswer). Onyx is the open-source answer to Glean and Mendable. The combination of self-host option, 40+ connectors, and permission-aware retrieval makes it the right call for teams that can't ship corporate data to a SaaS knowledge tool.

Key Features

• Open-source AI chat platform (formerly known as Danswer)
• Connects to 40+ enterprise data sources: Slack, Notion, Confluence, GitHub, Drive
• Self-hosted or Onyx Cloud deployment options
• Multi-LLM support: GPT-4, Claude, Gemini, open models like Llama and Mistral
• Permission-aware retrieval — respects source-system access controls
• Active community on GitHub; Apache 2.0 license
• Backed by Y Combinator (S23) and growing enterprise customer base

Ideal Use Case

Engineering teams and IT leaders who want a Glean-class AI knowledge assistant they can self-host — for regulated industries, security-conscious enterprises, or teams that prefer open-source control.

Why Use Onyx

Onyx is the open-source answer to Glean and Mendable. The combination of self-host option, 40+ connectors, and permission-aware retrieval makes it the right call for teams that can't ship corporate data to a SaaS knowledge tool.

FAQ

Q: vs Glean? A: Glean is closed-source SaaS; Onyx is open-source with self-host option. Both target enterprise knowledge search.

Q: Pricing? A: Open-source community edition is free. Onyx Cloud and enterprise self-host plans available.

Q: Connectors? A: 40+ including Slack, Notion, Confluence, GitHub, Google Drive, Salesforce, Zendesk, Jira, Linear.

Q: LLM support? A: OpenAI, Anthropic, Google, Azure OpenAI, plus self-hosted Llama / Mistral / Qwen.

tl;dr

Open-source AI chat + enterprise search. 40+ connectors. Self-host or cloud. YC S23.

Related

Looking for more options? Browse the Productivity directory or read our best AI productivity tools listicle. Onyx is also tracked on Crunchbase.