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Fathom vs Onyx

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Fathom compared with Onyx
DetailFathomOnyx
What it doesAI meeting notetaker that captures what matters and turns conversations into clear, actionable outcomes Open source enterprise search and AI assistant platform
StageEstablished Growing
FoundedNot given Not given
Based inNot given Not given
Pricing modelfreemium freemium
PricingFree plan for individuals with unlimited recordings and summaries. Premium ($20/month or $16/month annual). Team plan starts at $15/user/month (annual) or $19/month (monthly), 2-user minimum. Business plan from $25/user/month (annual) or $34/month (monthly), 2-user minimum. Enterprise available on q Free open-source self-hosting available. Managed cloud Business plan: $20/user/month (annual) or $25/user/month (monthly). Enterprise plan with custom pricing, on-premise deployments, OIDC/SAML SSO, white-labeling, and dedicated support.
Key features
  • Automatic call transcription and summaries
  • AI-generated action items
  • Bot-free and bot-based recording options
  • CRM field sync to Salesforce and HubSpot
  • Ask Fathom conversational search
  • AI Scorecards for coaching and performance
  • Keyword trackers with Slack routing
  • Deal View summarizing customer interactions
  • Integration with ChatGPT, Claude, and other LLMs
  • Slack, Asana, and Zapier integrations
  • Chat and search UI
  • Access to all major LLMs
  • Custom AI agents
  • MCP and OpenAPI actions
  • 40+ app connectors
  • Web search and deep research
  • Code interpreter
  • Slack integration
  • Developer APIs
  • Permission-aware connectors
What makes it different
  • Bot-free recording option in beta for increased flexibility
  • Ask Fathom with natural language across all meetings
  • AI Scorecards provide real-time coaching moments
  • Saves 6+ hours per team member weekly on follow-up work
  • Searches all sources in parallel for faster answers
  • Self-hosted with data never leaving customer infrastructure
  • Permission-aware from day one with real-time sync
  • Supports any LLM provider with one-click switching
  • State-of-the-art search outperforming industry leaders
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)77 no change since last check62 no change since last check
Trust Flow (Majestic)3229
Citation Flow (Majestic)5250
Referring domains (Majestic)56991686

6 details filled in for both companies.

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