🚀 OpenAI launches GPT-5.4 with stronger reasoning and faster performance OpenAI has introduced GPT-5.4, alongside GPT-5.4 Thinking and GPT-5.4 Pro, now rolling out across ChatGPT, the API, and Codex. What’s new: • One frontier model: GPT-5.4 combines improvements in reasoning, coding, and agentic workflows into a single system. • More efficient: the model uses fewer tokens while delivering faster responses and improved factual accuracy. • Better deep research: GPT-5.4 Thinking improves long-form reasoning and deep web research capabilities. • Stronger context retention: it can keep track of information better when reasoning for longer. • Mid-response steering: users can now interrupt the model while it’s responding and add instructions to redirect it. Availability: • GPT-5.4, GPT-5.4 Thinking, and GPT-5.4 Pro are rolling out gradually starting today. • Available in ChatGPT, the API, and Codex. • Steering is launching first on Android and web, with iOS coming soon. AI interfaces a