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Best Onyx Alternatives in 2026

12 apps from AI chatbots and assistants ranked against Onyx on the same published basis.

  1. 1
    ChatGPT Free plan AndroidiOSMacWebWin Free9.5
    Onyx vs ChatGPT
  2. 2
    Perplexity Free plan AndroidapiiOSMacWeb 9.5
    Onyx vs Perplexity
  3. 3
    Claude Free plan AndroidapiextensioniOSLinux 9.5
    Onyx vs Claude
  4. 4
    Microsoft Copilot Free plan WebWinMaciOSAndroid $8.33/mo9.3
    Onyx vs Microsoft Copilot
  5. 5
    Gemini Free plan WebWinMaciOSAndroid Free9.2
    Onyx vs Gemini
  6. 6
    Poe Free plan AndroidapiiOSMacWeb Free9.0
    Onyx vs Poe
  7. 7
    Grok Free plan WebiOSAndroid Free8.8
    Onyx vs Grok
  8. 8
    AnythingLLM Free plan AndroidapiLinuxMacself-hosted 8.5
    Onyx vs AnythingLLM
  9. 9
    LobeChat Free plan AndroidiOSLinuxMacself-hosted $9.90/mo8.5
    Onyx vs LobeChat
  10. 10
    Amazon Q Free plan WebAndroid 8.4
    Onyx vs Amazon Q
  11. 11
    Vibe Free plan WebWinMacLinuxiOS $14.99/mo8.4
    Onyx vs Vibe
  12. 12
    DeepSeek Free plan WebiOSAndroid Free8.3
    Onyx vs DeepSeek
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