This isn't the announcement, it's the developer docs intro page to the model - https://openai.com/index/introducing-gpt-5-2/ https://openai.com/index/introduci

This isn't the announcement, it's the developer docs intro page to the model - https://openai.com/index/introducing-gpt-5-2/ https://openai.com/index/introducing-gpt-5-2/. Still doesn't answer cross-comparison, but at least has benchmark metrics they want to show off.