It baffles me to see these last 2 announcements (GPT 5.1 as well) devoid of any metrics, benchmarks or quantitative analyses. Could it be because they are behind Google/Anthropic and they don't want to admit it?

(edit: I'm sorry I didn't read enough on the topic, my apologies)

This isn't the announcement, it's the developer docs intro page to the model - 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.