
AI Chat Platform
ch4t
Challenge
We wanted a chat interface that talked to multiple AI models, let users bring their own API keys, and streamed responses in real time. The existing options were either too bloated or locked to one provider.
Solution
React Native for cross-platform, a unified API layer across Claude, GPT, and Gemini, plus web search, file uploads, and chat branching. Users can start anonymously and link an account later without losing any history.
Results
- 5+ AI models through one interface
- Anonymous-to-auth linking, no data loss
- Chat branching to explore different response paths
- Streaming with <200ms to first token


