GPT-5.4 API Officially Launched: 1 Million Token Context Window, Native Computer Control, and 5 Core Capabilities Explained
Author's Note: GPT-5.4 has been officially released and its API is now open for calls. It supports a 1 million token context window, native computer control, and full-resolution vision. APIYI has already integrated it—register now to start calling it. GPT-5.4 was officially launched on March 5, 2026. It's OpenAI's most powerful general-purpose model to date….
