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 ...

Vibe coding is coding, period

As AI tools such as Claude Code take off, most of the world’s software may end up being written by software. Hello, and welcome back to Fast Company ’s Plugged In.
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OpenAI's Newest GPT Model Helped to Build Itself

The new coding model is the first time the brand has found its own models can be instrumental in its own development.

OpenAI says new coding model helped build itself

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 ...