Original explanatory diagram
GPT-5.2 separated work modes without making their results interchangeable
OpenAI introduced GPT-5.2 on December 11, 2025, describing Instant, Thinking, and Pro variants for different kinds of work.
Read analysisInsight tag
model versions
2 related stories.
Stories
Original explanatory diagram
GPT-5.1 turned model-family updates into a release-management problem
OpenAI released GPT-5.1 on November 12, 2025, introducing Instant and Thinking variants as an update to the GPT-5 family.
Read analysis