OpenAI on Wednesday released GPT-5.3-Codex, which the company calls its most capable coding agent to date, in an announcement timed to land at the exact same moment Anthropic unveiled its own flagship ...

Anthropic today announced the launch of Claude Opus 4.5, which it says is the "best model in the world for coding, agents, and computer use." It's improved over prior models for everyday tasks like ...

Anthropic launched Claude Sonnet 4.5 on Monday, positioning the artificial intelligence model as "the best coding model in the world" in a direct challenge to OpenAI's recently released GPT-5, as the ...

OpenAI launched GPT-5.3-Codex on Wednesday, positioning the 25% faster coding model as a general-purpose work agent that helped build itself. The release came minutes after Anthropic unveiled Claude ...