Best Onyx Alternatives in 2026
Updated
20 platforms from AI chatbots and assistants ranked against Onyx on the same published basis.
- 1Onyx vs Perplexity
- 2Onyx vs Claude
- 3Onyx vs Grok
- 4Onyx vs Poe
- 5Onyx vs AnythingLLM
- 6Onyx vs Dust
- 7Onyx vs Cleus
- 8Onyx vs Venice AI
- 9Onyx vs LM Studio
- 10Onyx vs ChatGPT
- 11Onyx vs Microsoft Copilot
- 12Onyx vs Gemini
- 14Onyx vs Amazon Q
- 15Onyx vs DeepSeek
- 16Onyx vs Lumo
- 17Onyx vs Quad Chat
- 18Onyx vs Yuanbao
- 19Onyx vs Merlin
- 20Onyx vs Meta AI
- 21Onyx vs Doubao
Onyx alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Perplexity | 8.9 | Free plan | $20/mo | Android, API, iOS, Mac, Web, Windows |
| 2 | Claude | 8.8 | Free plan | Android, API, Browser, iOS, Linux, Mac, Web, Windows | |
| 3 | Grok | 8.7 | Free plan | $30/mo | Android, API, iOS, Web |
| 4 | Poe | 8.5 | Free plan | Free | Android, API, iOS, Mac, Web, Windows |
| 5 | AnythingLLM | 8.2 | Free plan | Android, API, Linux, Mac, self-hosted, Web, Windows | |
| 6 | Dust | 8.0 | Free plan | €24/mo | API, Browser, Web |
| 7 | Cleus | 7.9 | Free plan | $9.95/mo | Android, API, iOS, Web |
| 8 | Venice AI | 7.9 | Free plan | $18/mo | Android, API, iOS, Web |
| 9 | LM Studio | 7.6 | Free plan | $20/mo | API, iOS, Linux, Mac, self-hosted, Windows |
| 10 | ChatGPT | 7.5 | Free plan | Free | Android, iOS, Mac, Web, Windows |
| 11 | Microsoft Copilot | 7.4 | Free plan | $8.33/mo | Web, Windows, Mac, iOS, Android |
| 12 | Gemini | 7.3 | Free plan | Free | Web, Windows, Mac, iOS, Android |
| 14 | Amazon Q | 7.0 | Free plan | Web, Android | |
| 15 | DeepSeek | 6.8 | Free plan | Free | Web, iOS, Android |
| 16 | Lumo | 6.8 | Free plan | Free | Web, iOS, Android |
| 17 | Quad Chat | 6.8 | Free plan | $8/mo | Android, iOS, Web |
| 18 | Yuanbao | 6.7 | Free plan | Free | Web, iOS, Android |
| 19 | Merlin | 6.7 | Free plan | Free | Web, Mac, iOS, Android |
| 20 | Meta AI | 6.6 | Web, Mac, iOS, Android | ||
| 21 | Doubao | 6.6 | Web, Windows, Mac, iOS, Android |
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Questions about Onyx alternatives
What is the best alternative to Onyx?
Perplexity, number 1 in AI chatbots and assistants with a score of 8.9 out of 10. The others here: Claude, Grok, Poe and 16 more.
What is the best free alternative to Onyx?
Perplexity is the best-ranked alternative with a free plan. 18 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.