Simon Willison 12/12/2025

OpenAI has released GPT-5.2 and GPT-5.2 Pro, citing competitive pressure. The models feature a knowledge cutoff of August 2025, a 400k token context, and increased pricing. Key improvements include major gains on professional knowledge benchmarks, enhanced vision capabilities, and a new server-side API for response compaction to manage long workflows.

GPT-5.2

Comments

No comments yet

Be the first to share your thoughts!

Browser Extension

Get instant access to AllDevBlogs from your browser