https://t.co/AqJ1ICTw8N pic.twitter.com/xUV1R9Br8B
— Bojan Tunguz (@tunguz) 5 mars 2026
GPT-5.4 Thinking and GPT-5.4 Pro are rolling out now in ChatGPT. GPT-5.4 is also now available in the API and Codex. GPT-5.4 brings our advances in reasoning, coding, and agentic workflows into one frontier model.