Best OpenThena Alternatives in 2026
Updated
20 apps from AI chatbots and assistants ranked against OpenThena on the same published basis.
- 1OpenThena vs ChatGPT
- 2OpenThena vs Perplexity
- 3OpenThena vs Claude
- 4OpenThena vs Microsoft Copilot
- 5OpenThena vs Gemini
- 6OpenThena vs Poe
- 7OpenThena vs Grok
- 8OpenThena vs AnythingLLM
- 9OpenThena vs LobeChat
- 10OpenThena vs Amazon Q
- 11OpenThena vs Vibe
- 12OpenThena vs DeepSeek
- 13OpenThena vs Kimi
- 14OpenThena vs Lumo
- 15OpenThena vs Merlin
- 16OpenThena vs Quad Chat
- 17OpenThena vs Meta AI
- 18OpenThena vs Doubao
- 19OpenThena vs Yuanbao
- 20OpenThena vs Big-AGI
OpenThena alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | ChatGPT | 9.5 | Free plan | Free | Android, iOS, Mac, Web, Windows |
| 2 | Perplexity | 9.5 | Free plan | $20/mo | Android, API, iOS, Mac, Web, Windows |
| 3 | Claude | 9.5 | Free plan | — | Android, API, Browser, iOS, Linux, Mac, Web, Windows |
| 4 | Microsoft Copilot | 9.3 | Free plan | $8.33/mo | Web, Windows, Mac, iOS, Android |
| 5 | Gemini | 9.2 | Free plan | Free | Web, Windows, Mac, iOS, Android |
| 6 | Poe | 9.0 | Free plan | Free | Android, API, iOS, Mac, Web, Windows |
| 7 | Grok | 8.9 | Free plan | $30/mo | Android, API, iOS, Web |
| 8 | AnythingLLM | 8.5 | Free plan | — | Android, API, Linux, Mac, self-hosted, Web, Windows |
| 9 | LobeChat | 8.5 | Free plan | $9.90/mo | Android, iOS, Linux, Mac, self-hosted, Web, Windows |
| 10 | Amazon Q | 8.4 | Free plan | — | Web, Android |
| 11 | Vibe | 8.4 | Free plan | $14.99/mo | Web, Windows, Mac, Linux, iOS, Android |
| 12 | DeepSeek | 8.3 | Free plan | Free | Web, iOS, Android |
| 13 | Kimi | 8.3 | No | — | Web, Windows, Mac, iOS, Android |
| 14 | Lumo | 8.3 | Free plan | Free | Web, iOS, Android |
| 15 | Merlin | 8.3 | Free plan | Free | Web, Mac, iOS, Android |
| 16 | Quad Chat | 8.3 | Free plan | $8/mo | Android, iOS, Web |
| 17 | Meta AI | 8.2 | No | — | Web, Mac, iOS, Android |
| 18 | Doubao | 8.2 | No | — | Web, Windows, Mac, iOS, Android |
| 19 | Yuanbao | 8.2 | Free plan | Free | Web, iOS, Android |
| 20 | Big-AGI | 8.2 | Free plan | $9/mo | Linux, Mac, self-hosted, Web, Windows |
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Questions about OpenThena alternatives
What is the best alternative to OpenThena?
ChatGPT, number 1 in AI chatbots and assistants with a score of 9.5 out of 10. The others here: Perplexity, Claude, Microsoft Copilot and 16 more.
What is the best free alternative to OpenThena?
ChatGPT is the best-ranked alternative with a free plan. 17 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: documentation depth, a free tier and the platforms it runs on.