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).
API key exploitation is more than hypothetical. In a different context, a student who reportedly exposed a GCP API key on GitHub last June was left nursing a $55,444 bill (later waived by Google) ...
A long-term Chinese cyber espionage operation that has been active since at least 2017 and has a count of at least 53 victims ...
ChatGPT is now using its 5.4 Thinking model for deeper reasoning, and it's even better at handling "professional work." ...