APIBrain is an OpenAI-compatible API gateway. Redeem your code, copy the key, and change one line in the client you already use.
Real traffic through the gateway, refreshed every few seconds. Usernames are masked.
Every model answers on the same OpenAI-compatible endpoint. Switching models is a one-string change.
Anything that speaks the OpenAI chat API works unmodified — VS Code, Cursor, your own scripts, streaming included.
A redeemed code sets how many tokens your key may spend. The dashboard shows exactly what's left.
DeepSeek V4.1 flash — latest fast model with vision
General-purpose chat — fast and reliable for everyday use
Deep step-by-step reasoning for complex problems
Fastest, most cost-efficient model for high-volume work
Fast model with image understanding (vision input)
Highest quality, balanced speed for production