CoAI

CoAI is a next-generation multi-tenant AI one-stop solution that combines a beautiful chat interface with an enterprise-grade unified LLM gateway. Built with Go and React, it supports over 200 AI models from 35+ providers including OpenAI, Anthropic, Google Gemini, Midjourney, and all major Chinese AI providers. It features a built-in admin dashboard, subscription and credit billing system, conversation sync across devices, comprehensive file parsing (PDF, Docx, images), and full-text web search via SearXNG. What sets CoAI apart is its all-in-one approach. It combines the functionality of projects like ChatGPT-Next-Web and One API into a single unified platform with a stunning UI built on Shadcn UI and Tremor Charts. The platform includes an OpenAI-compatible API proxy, making it easy to integrate with existing tools and workflows. Features like model caching reduce costs by returning cached results for identical requests, while the channel management system provides priority-based routing, load balancing, and automatic failover across multiple model providers. CoAI also offers comprehensive business features including a multi-tier subscription system, elastic billing (per-request or per-token), gift code and redemption code management, user grouping, SEO optimization, and PWA support. The Pro version adds TTS/STT, plugin marketplace, RAG knowledge base, multi-tenant API key distribution, and Discord/Telegram bot integration. With its Apache-2.0 license, CoAI is friendly for commercial use and secondary development.