Dan tested Codex 5.3 on Proof, a macOS markdown editor that he's been vibe coding that tracks the origin of every piece of text—whether it was written by a human or generated by AI—and lets users ...

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

The new model is build to accelerate the capabilities of Codex, the agentic coding tool OpenAI launched earlier this week.

Today, OpenAI announced GPT-5.3-Codex, a new version of its frontier coding model that will be available via the command line ...

The new coding model released Thursday afternoon, entitled GPT-5.3-Codex, builds on OpenAI’s GPT-5.2-Codex model and combines insights from the AI company’s GPT-5.2 model, which excels on non-coding ...

OpenAI and Anthropic, the startups behind ChatGPT and Claude, are gearing up for a major showdown. Both need to prove they can turn a profit.

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 a new Canva update, your ChatGPT designs can now match your brand’s look, pulling in the right colours, fonts and logos without you having to tweak or redesign anything manually.