Best OpenThena Alternatives in 2026
Updated
20 platforms 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 LobeChat
- 7OpenThena vs Poe
- 8OpenThena vs Grok
- 9OpenThena vs AnythingLLM
- 10OpenThena vs Amazon Q
- 11OpenThena vs Vibe
- 12OpenThena vs DeepSeek
- 13OpenThena vs Lumo
- 14OpenThena vs Merlin
- 15OpenThena vs Big-AGI
- 16OpenThena vs Yuanbao
- 17OpenThena vs Kimi
- 18OpenThena vs Quad Chat
- 19OpenThena vs Gemini Notebook
- 20OpenThena vs Doubao
OpenThena alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | ChatGPT | 9.0 | Free plan | Free | Android, iOS, Mac, Web, Windows |
| 2 | Perplexity | 9.0 | Free plan | $20/mo | Android, API, iOS, Mac, Web, Windows |
| 3 | Claude | 9.0 | Free plan | — | Android, API, Browser, iOS, Linux, Mac, Web, Windows |
| 4 | Microsoft Copilot | 8.8 | Free plan | $8.33/mo | Web, Windows, Mac, iOS, Android |
| 5 | Gemini | 8.7 | Free plan | Free | Web, Windows, Mac, iOS, Android |
| 6 | LobeChat | 8.7 | Free plan | $9.90/mo | Android, iOS, Linux, Mac, self-hosted, Web, Windows |
| 7 | Poe | 8.6 | Free plan | Free | Android, API, iOS, Mac, Web, Windows |
| 8 | Grok | 8.5 | Free plan | $30/mo | Android, API, iOS, Web |
| 9 | AnythingLLM | 8.2 | Free plan | — | Android, API, Linux, Mac, self-hosted, Web, Windows |
| 10 | Amazon Q | 8.1 | Free plan | — | Web, Android |
| 11 | Vibe | 8.1 | Free plan | $14.99/mo | Web, Windows, Mac, Linux, iOS, Android |
| 12 | DeepSeek | 8.0 | Free plan | Free | Web, iOS, Android |
| 13 | Lumo | 8.0 | Free plan | Free | Web, iOS, Android |
| 14 | Merlin | 8.0 | Free plan | Free | Web, Mac, iOS, Android |
| 15 | Big-AGI | 8.0 | Free plan | $9/mo | Linux, Mac, self-hosted, Web, Windows |
| 16 | Yuanbao | 7.9 | Free plan | Free | Web, iOS, Android |
| 17 | Kimi | 7.8 | No | — | Web, Windows, Mac, iOS, Android |
| 18 | Quad Chat | 7.8 | Free plan | $8/mo | Android, iOS, Web |
| 19 | Gemini Notebook | 7.8 | Free plan | $9.99/mo | Web, iOS, Android |
| 20 | Doubao | 7.7 | No | — | Web, Windows, Mac, iOS, Android |
Make your platform an alternative to OpenThena
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about OpenThena alternatives
What is the best alternative to OpenThena?
ChatGPT, number 1 in AI chatbots and assistants with a score of 9.0 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. 18 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.