Deploy your own AI chat service and charge users via subscription or per-model usage billing across 200-plus language models.
Route AI requests across multiple provider API keys with automatic failover when a channel goes down.
Let users upload PDFs, Word, or Excel files and chat with AI about their content through your hosted platform.
Point existing OpenAI-compatible developer tools at your self-hosted CoAI instance to route them through preferred providers.
Requires self-hosted infrastructure and separate API keys for each AI provider you want to connect.
CoAI.Dev is a self-hosted platform for running an AI chat service with support for over 200 language models from more than 35 providers. You deploy it on your own infrastructure, and it handles serving a chat interface to users, routing requests to AI providers, and managing billing, all in one package. On the user side, people get a chat interface for conversations with text, image generation (through models like DALL-E or Midjourney), and file uploads covering PDF, Word, Excel, PowerPoint, and image formats. Responses can include formatted text with math formulas, code with syntax highlighting, charts, and mind maps. Conversations sync across devices and can be shared as links or saved as images. On the operator side, the platform is built for running a multi-tenant business. You can charge users through subscriptions or usage-based billing, manage gift codes and redemption codes, control which models appear in the user-facing marketplace, set prices per model, and configure site branding. A built-in dashboard shows usage, costs, and user activity. Channel management is where the platform handles backend routing complexity. You configure multiple API keys for the same or different providers, assign priorities, and set weights for load distribution. If a channel fails, the system retries automatically with another. This lets an operator work with several AI providers simultaneously and switch around failures without manual intervention. Other built-in capabilities include a response cache (repeated identical requests return a stored result and are not billed again), web search powered by the open-source SearXNG engine with support for Google, Bing, DuckDuckGo, and others, and an OpenAI-compatible API output layer so developers can point their existing tools at the self-hosted instance. A commercial Pro version with additional features is available separately. The open-source version is licensed under Apache-2.0.
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