free

https://openrouter.ai/openrouter/free

• 200K Context Length | https://openrouter.ai/compare/openrouter/free/openrouter/auto

https://opencode.ai/docs/zen/#pricing

Model	Input	Output	Cached Read	Cached Write
Big Pickle	Free	Free	Free	-
MiMo V2 Pro Free	Free	Free	Free	-
MiMo V2 Omni Free	Free	Free	Free	-
Nemotron 3 Super Free	Free	Free	Free	-
MiniMax M2.5 Free	Free	Free	Free	-
GPT 5 Nano	Free	Free	Free	-