OpenAI introduced GPT-5.4, highlighting stronger visual analysis capabilities—up to 10.24 million pixels and a maximum dimension of 6,000 pixels—and a claim that responses are 18 percent less likely to contain factual errors. The rollout coincides with user shifts toward Anthropic after OpenAI announced a Pentagon partnership. Anthropic responded by extending its memory feature to free users and adding a memory‑import tool, marking March 2 as its busiest sign‑up day. GPT-5.4 is now available across ChatGPT web and native apps, Codex, and the API, with special tiers for Plus, Team, Pro, Edu, and Enterprise customers. Read more →