- Home
- AI chatbots and assistants
- OpenThena
On the recordRead 11 Oct 202618 facts
OpenThena
Plans and prices
OpenThena
Free
OpenThena itself is free · pay only for the model provider you use
Read 11 Oct 2026 · openthena.com
On the record
- API limit
- The chat API accepts at most 50 messages per request.openthena.com · read 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.openthena.com · read 11 Oct 2026
- Cost limit
- OpenThena itself is free; users pay only for the model provider they choose.openthena.com · read 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.openthena.com · read 11 Oct 2026
- Deployment
- The documentation describes one-click Vercel deployment and self-hosting.openthena.com · read 11 Oct 2026
- Gateway
- Its LiteLLM-style gateway provides an OpenAI-format interface to models.openthena.com · read 11 Oct 2026
- History storage
- Chat history is stored in browser localStorage and can be erased by clearing a conversation or browser data.openthena.com · read 5 Oct 2026
- License
- OpenThena is MIT licensed and described as auditable and open source.openthena.com · read 11 Oct 2026
- Local setup
- The quickstart requires Node.js 18+ and a Xiaomi MiMo API key to run locally.openthena.com · read 5 Oct 2026
- Model
- Xiaomi MiMo v2.5 is the default model, and the provider can be changed through configuration.openthena.com · read 5 Oct 2026
- Model compatibility
- The FAQ says any OpenAI-compatible endpoint works, including a self-hosted LiteLLM proxy or a local model.openthena.com · read 11 Oct 2026
- Privacy
- The maker says it has no database, accounts, message-content server logs, analytics, fingerprinting, or advertising cookies.openthena.com · read 11 Oct 2026
- Product
- OpenThena is an open-source AI assistant with a streaming chat experience.openthena.com · read 11 Oct 2026
- Provider data
- Prompts are sent to the configured upstream model provider, whose data handling is governed by that provider’s terms.openthena.com · read 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.openthena.com · read 11 Oct 2026
- Self-hosting
- OpenThena is a Next.js app that can run anywhere Node runs.openthena.com · read 11 Oct 2026
- Streaming
- Responses stream token by token.openthena.com · read 11 Oct 2026