Stable
Warm
Introducing GPT-5.4
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.
Signal weather
The story has moved beyond the first headline and now acts as a reliable context anchor.
Why now
This story is still moving and pulling follow-up coverage.