ChatGPT Upgraded with GPT-5.4 Model for Advanced Reasoning and Programming
Hrvoje Milakovic
OpenAI recently introduced GPT-5.4 as its most capable and efficient frontier model tailored for professional tasks. This update brings together major progress in logical reasoning, coding expertise, and agent-like workflows into one unified system. Available now through ChatGPT, the API, and the Codex tool, it promises to handle complex work with greater accuracy and speed....