GPT-5.1 Codex Max
OpenAI's GPT-5.1 Codex Max is now available on Vercel AI Gateway with no other provider accounts required. The model uses compaction to operate across multiple context windows and is optimized for long-running coding tasks.
The call on this one
What shipped is free. The call on it, what to do about it and the condition on that, opens with a signup: free, no card, every edition in full.
It becomes $50 a year, and signing up now keeps your first year free.