OpenAI releases GPT-5.4, positioning it as a cutting-edge professional work model

OpenAI announced the release of GPT-5.4 in ChatGPT (in the form of GPT-5.4 Thinking), API, and Codex, marking its most powerful and efficient state-of-the-art model for professional work to date. It also released GPT-5.4 Pro for ChatGPT and API users, designed specifically for those who seek extreme performance on complex tasks.

GPT-5.4 integrates OpenAI's recent advancements in reasoning, programming, and agent-based workflows into a single state-of-the-art model, incorporating the industry-leading programming capabilities of GPT-5.3-Codex while improving the model's performance in tools, software environments, and professional tasks involving spreadsheets, presentations, and documents.