GPT-5.3 Codex merges the advanced coding capabilities of GPT-5.2 Codex with the reasoning and professional knowledge of GPT-5 ...

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

Some are embracing the new technology largely uncritically, regarding it as a tool that can speed up teaching processes, ...

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.

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

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

On Thursday afternoon, OpenAI released a new cutting-edge coding model that the company said assisted in its own creation. “GPT-5.3-Codex is our first model that was instrumental in creating itself,” ...

OpenAI launches GPT-5.3-Codex with faster coding, stronger reasoning, and higher benchmark accuracy—plus API access soon.

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 ...

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

OpenAI has a published Preparedness Framework, which it uses for measuring and protecting against severe harm from frontier AI capabilities. In the blog post announcing GPT-5.3-Codex, the company says ...