GPT-5.2 Thinking scores 70.9% on GDPval knowledge work tasks, 55.6% on SWE-Bench Pro, 80.0% on SWE-bench Verified, 92.4% on GPQA Diamond, and 98.7% on Tau2-bench Telecom. GPT-5.2 Instant, Thinking, and Pro are available now in the API to all developers.
Added to The Deploy Log , updated . Read Edition 13, the edition that carried it.
39 rows from OpenAI in The Deploy Log are dated on or before this one, this one included.