Anthropic releases Claude Opus 4.6 featuring a 1M token context window and advanced coding capabilities that discovered over 500 zero-day vulnerabilities during testing, setting new standards for AI security.

OpenAI releases GPT-5.3-Codex, the most capable agentic coding model to date. The groundbreaking AI helped build and deploy itself, runs 25% faster.

OpenAI unveils GPT-5.3-Codex, a breakthrough agentic coding model that surpasses previous versions with advanced autonomous programming capabilities and cybersecurity implications.