AI09/19/2026@TechDeskGPT-5.4 Thinking Comes to ChatGPTOpenAIStarts 03/05/2026CONFIRMED91% CONFIDENCEOpenAI's[1][2][3] own model release notes date this entry March 5, 2026OpenAI brings GPT-5.4 Thinking to ChatGPT, a frontier model combining GPT-5.3-Codex's coding with better work across tools, documents and spreadsheets.1.0000
