GPT-5.3-Codex is about more than just writing code ...

In benchmark tests such as Swaybench Pro and Terminal Bench, GPT-5.3 Codex consistently outperformed its predecessors, setting new standards for speed and execution. When compared to Anthropic’s Opus ...

Today, OpenAI announced GPT-5.3-Codex, a new version of its frontier coding model that will be available via the command line, IDE extension, web interface, and the new macOS desktop app. (No API ...

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

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

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 ...

The frontier AI labs continue releasing models that are better than their predecessors, but there’s an interesting change in how they operate ...

On SWE-bench Pro (Public), which evaluates software engineering performance across multiple programming languages, GPT-5.3-Codex reached 56.8% accuracy. The most notable improvement appeared in ...

OpenAI’s GPT-5.3-Codex expands Codex into a full agentic system, delivering faster performance, top benchmarks, and advanced cybersecurity capabilities.

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