ChatGPT-5.3 Codex & Claude Opus 4.6 Launch Offering Unmatched Coding Speed or Long Recall Depth

Claude Opus 4.6 and ChatGPT 5.3 Codex launch with a 1-million-token window and 25% faster runs, letting you match tasks to ...

ChatGPT 5.3 Codex Moves Ahead on Code, While Claude’s 4.6 AI Banks on Reliability

On a 2.0 terminal benchmark, OpenAI’s model scores about 10% higher, guiding users toward stronger results on long, complex ...

Anthropic's Claude Opus 4.6 brings 1M token context and 'agent teams' to take on OpenAI's Codex

Anthropic has launched Claude Opus 4.6 with a 1M-token context window, multi-agent “agent teams” in Claude Code, and new API ...

OpenAI’s GPT-5.3-Codex drops as Anthropic upgrades Claude — AI coding wars heat up ahead of Super Bowl ads

OpenAI launched GPT-5.3-Codex as Anthropic released Claude Opus 4.6 in a simultaneous drop that kicks off the AI coding wars, with benchmark claims, enterprise agent ambitions, and cybersecurity ...

OpenAI releases GPT-5.3-Codex, a coding model that helped build itself

Anthropic, one of OpenAI's chief rivals, also released a new coding model today, Claude Opus 4.6. Earlier this week, OpenAI ...

OpenAI’s GPT-5.3-Codex thinks deeper and wider about coding work

The company says its latest model’s agentic skills also apply to a broader set of knowledge work such as presentations and ...

OpenAI's new GPT-5.3-Codex is 25% faster and goes way beyond coding now - what's new

OpenAI's new GPT-5.3-Codex is 25% faster and goes way beyond coding now - what's new ...

OpenAI counters Anthropic Claude Opus 4.6 with GPT-5.3 Codex, its most advanced coding agent

OpenAI’s latest Codex model combines faster performance with deeper reasoning and real-time collaboration. The Sam Altman-led company seems to have outdone Anthropic’s latest Claude Opus 4.6.

OpenAI's Codex just got its own Mac app - and anyone can try it for free now

OpenAI's Codex just got its own Mac app - and anyone can try it for free now ...