The company says Mythos is too dangerous to release publicly. Cybersecurity experts agree the model's capabilities matter, ...
Security researchers used GPT-5.4 and Claude Opus 4.6 in an open-source harness to reproduce Anthropic's Mythos vulnerability ...
GPT-5.4 Pro cracked a conjecture in number theory that had stumped generations of mathematicians, using a proof strategy that ...
OpenAI rolled out their updated Codex app for Mac yesterday and, among other things, they shipped a native computer use tool ...