Major update
GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum
OpenAI announced “GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum.” This one looks larger than a routine product note.
OpenAI announced “GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum.”
The practical baseline only moves if the capability survives real use and reaches people at a workable cost.
My first read: watch what actually changes in capability, access, and cost, not just the launch headline. The linked source is still the place to verify the exact claims.