OpenAI launches new agentic coding model only minutes after Anthropic drops its own

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

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 ...

I used Xcode 26.3 to build an iOS app with my voice in just two days - and it was exhilarating

Want to see what agentic coding really feels like? Come along on my wild, wonderful, and terrifying two-day vibe coding adventure with Xcode 26.3.
Interesting Engineering on MSN

OpenAI launches Codex app to manage multiple AI agents across software projects

OpenAI has launched a new Codex desktop app aimed at helping developers manage multiple ...
Every

Now More Fun at Parties

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 ...