OpenThena

5.7easy start · #59 of 65
in AI chatbots and assistants

Runs on api, Linux, self-hosted, Web.

OpenThena is ranked #59 of 65 in AI chatbots and assistants on The Geeks Club. It runs on API, Linux, Self-hosted, Web.

Compared on AI chatbots and assistants

ChatGPT 0 of 4 in the starter kit Lesson 19.0 Perplexity 0 of 4 in the starter kit Lesson 29.0 Claude 0 of 4 in the starter kit Lesson 39.0 Microsoft Copilot 0 of 4 in the starter kit Lesson 48.8 Gemini 0 of 4 in the starter kit Lesson 58.7 LobeChat 0 of 4 in the starter kit Lesson 68.7

Product: OpenThena is an open-source AI assistant that streams answers and keeps conversation history in the browser.
License: The project is MIT licensed and described as auditable and self-hostable.
Model: Xiaomi MiMo v2.5 is the default model, and the provider can be changed through configuration.
Gateway: A LiteLLM-style gateway provides an OpenAI-format interface to models; an optional LiteLLM proxy can centralize keys, budgets, and providers.
Streaming: Responses stream token by token, and the chat API uses the AI SDK data-stream protocol.
Privacy: OpenThena says it has no database, accounts, message-content server logs, analytics, fingerprinting, or advertising cookies.
History storage: Chat history is stored in browser localStorage and can be erased by clearing a conversation or browser data.
Provider data: Prompts are sent to the configured upstream model provider, whose data handling is governed by that provider’s terms.
Self-hosting: OpenThena is a Next.js app that can run anywhere Node.js runs.
Local setup: The quickstart requires Node.js 18+ and a Xiaomi MiMo API key to run locally.
Deployment: The site describes one-click Vercel deployment and self-hosting the full stack.
API limit: The chat API accepts at most 50 messages per request.

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