OpenThena
The facts below are what the maker publishes about OpenThena, checked and dated. Our editors have not written about it yet.
Plans and prices
From OpenThena's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| OpenThena | Free | OpenThena itself is free · pay only for the model provider you use · Free; model provider charges may apply |
The facts
Each one read from OpenThena's own pages, with the date it was checked.
What it does
- API limit
- The chat API accepts at most 50 messages per request.checked 5 Oct 2026
- Chat storage
- Chat history is saved in the browser's localStorage and can be erased by clearing a conversation or browser data.checked 11 Oct 2026
- Default model
- It uses Xiaomi MiMo (mimo-v2.5-pro) by default, and the model can be changed through an environment variable.checked 11 Oct 2026
- Deployment
- The documentation describes one-click Vercel deployment and self-hosting.checked 11 Oct 2026
- Gateway
- Its LiteLLM-style gateway provides an OpenAI-format interface to models.checked 11 Oct 2026
- History storage
- Chat history is stored in browser localStorage and can be erased by clearing a conversation or browser data.checked 5 Oct 2026
- License
- OpenThena is MIT licensed and described as auditable and open source.checked 11 Oct 2026
- Local setup
- The quickstart requires Node.js 18+ and a Xiaomi MiMo API key to run locally.checked 5 Oct 2026
- Model
- Xiaomi MiMo v2.5 is the default model, and the provider can be changed through configuration.checked 5 Oct 2026
- Model compatibility
- The FAQ says any OpenAI-compatible endpoint works, including a self-hosted LiteLLM proxy or a local model.checked 11 Oct 2026
- Privacy
- The maker says it has no database, accounts, message-content server logs, analytics, fingerprinting, or advertising cookies.checked 11 Oct 2026
- Product
- OpenThena is an open-source AI assistant with a streaming chat experience.checked 11 Oct 2026
- Provider data
- Prompts are sent to the configured upstream model provider, whose data handling is governed by that provider’s terms.checked 5 Oct 2026
- Provider data handling
- Prompts are sent to the configured upstream model provider, whose data handling is governed by that provider's terms.checked 11 Oct 2026
- Self-hosting
- OpenThena is a Next.js app that can run anywhere Node runs.checked 11 Oct 2026
- Streaming
- Responses stream token by token.checked 11 Oct 2026
Money
- Cost limit
- OpenThena itself is free; users pay only for the model provider they choose.checked 11 Oct 2026
- Free plan
- Yeschecked 21 Sep 2026
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