Following that behavioral change, the company has tagged on an additional release. OpenAI made ChatGPT-5.4 official, marking it as an upgrade for users who need the model for “professional” work and ...
Already bored with ChatGPT 5.3 Instant, which came out Tuesday? OpenAI has a new model family ready for you. The company released two new models, named GPT 5.4 Thinking and GPT 5.4 Pro, on Thursday.