From the source
OpenAI announces GPT-5.4, a frontier model with state-of-the-art coding, computer use, tool search, and a 1M-token context window.
From the source
Introducing GPT-5.4, OpenAI’s most most capable and efficient frontier model for professional work, with state-of-the-art coding, computer use, tool search, and 1M-token context.
openai.com