Side by side
ChatBox AI vs OpenThena
Both stand on ai chatbots and assistants. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidiPhoneWeb
ChatBox AI brings multiple models, multimodal conversations, research, writing, and synchronization into one workspace. The free tier is available, while higher image capacity is described without a listed PRO price.
Visit ChatBox AI Free plan APILinuxSelf-hosted+1
OpenThena focuses on configurable, self-hosted AI chat with minimal stated application data collection. Users remain responsible for provider costs and for how the selected model service handles prompts.
Visit OpenThenaThe facts
| ChatBox AI | OpenThena | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Android, iPhone, Web | API, Linux, Self-hosted, Web |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 2 | 1 |
| Maker | ChatBox AI | Not published |
| Website | chatbox.ai | openthena.com |
| On ai chatbots and assistants | #47 of 65 | #51 of 65 |
ChatBox AI: what it does well
- Works on Android, iOS, and web
- Supports text, images, voice, and files
- Offers cited deep web research
- Includes a free plan
- Syncs chats and files
What to know first
- Free plan has daily usage limits
- Essential AI models are limited on Free
- Shared links remain available 30 days
OpenThena: what it does well
- Free and MIT licensed
- Token-by-token response streaming
- Configurable providers and OpenAI-format gateway
- No accounts, analytics, or advertising cookies
- Supports Vercel deployment and self-hosting
What to know first
- Model-provider charges may apply
- Prompts follow the upstream provider’s terms
- Local setup requires Node.js 18+ and an API key
- Chat API accepts at most 50 messages per request
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