GPT-5.4, OpenAI's most recent frontier AI model, is now available via the API and Codex, as well as in ChatGPT as GPT-5.4 Thinking. The Thinking mode of ChatGPT enables users to see the logical path that leads to their final answer and allows them to modify their instructions during the answer process. The Thinking system of GPT-5.4 replaces the Thinking system of GPT-5.2 in Plus users, Team users, and Pro users while GPT-5.4 Pro serves enterprise customers who need to run their most demanding tasks. Read more in our articles including "OpenAI rolls out GPT-5.4 Thinking" and "OpenAI introduces ChatGPT Plus for $20 a month".
GPT-5.4, OpenAI's most recent frontier AI model, is now available via the API and Codex, as well as in ChatGPT as GPT-5.4 Thinking. The Thinking mode of ChatGPT enables users to see the logical path that leads to their final answer and allows them to modify their instructions during the answer process.
The Thinking system of GPT-5.4 replaces the Thinking system of GPT-5.2 in Plus users, Team users, and Pro users while GPT-5.4 Pro serves enterprise customers who need to run their most demanding tasks.
Our coverage of ChatGPT-5.4 Thinking includes: "OpenAI rolls out GPT-5.4 Thinking"; "OpenAI introduces ChatGPT Plus for $20 a month"; "Microsoft reveals new Bing search and Edge browser powered by OpenAI". Each article provides unique insights and information.