The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some tasks) than its predecessors).
While OpenAI is bringing GPT-5.4 to its API and its AI-powered coding tool, Codex, it’s rolling out its reasoning model, ...
OpenAI integrates Excel support and live financial data into ChatGPT, creating a powerful spreadsheet co-pilot for traders, analysts, and crypto investors.