OpenAI releases ‘code red’ GPT-5.2 update to ChatGPT: ‘most capable model series yet’

OpenAI has officially announced its GPT-5.2 upgrade to ChatGPT. This is the so-called “code red” reaction to Google Gemini that OpenAI calls its “most capable model series yet for professional knowledge work.”

The announcement follows a report last week that claimed OpenAI was pushing up the release of GPT-5.2 by at least a few weeks as a response to the latest Gemini models from Google. OpenAI had a “code red” memo, reacting to the competition, that drove the…