OpenAI Launches GPT-5.4 Days Just After Last Version as ‘QuitGPT’ Exodus Gains Steam

In brief

• OpenAI launched GPT-5.4 amid the growing QuitGPT backlash over its Pentagon AI contract.
• GPT-5.4 adds a 1-million-token context window, stronger reasoning, and agentic capabilities.
• Enterprise users benefit most as GPT-5.4 delivers faster AI agents with fewer tokens.