OpenAI’s GPT-5.4 mini and nano models cut costs and latency while staying close to flagship performance, giving developers faster AI options for real-time apps without sacrificing core capabilities.

OpenAI has introduced GPT-5.4 mini and GPT-5.4 nano, two small, cost-efficient versions of its flagship AI model.  In a press release, OpenAI said that 5.4 nano and mini are “our most capable small ...

Disclosure: Ziff Davis, CNET's parent company, in 2025 filed a lawsuit against OpenAI, alleging it infringed Ziff Davis ...

Sam Altman says ChatGPT Codex subagents outperform Claude Code, using plain-language triggers and configurable agent files ...

Open-source projects form much of the foundation of modern software, with many systems used in the industry relying on code ...

We visited OpenAI's new Bellevue office on opening day, toured the retro-modern space, and talked with CTO Vijaye Raji about ...

Developers can activate OpenAI’s new tool by giving it access to the code repository they wish to scan. According to the ...

OpenAI has started rolling out Codex Security, an application security agent designed to help developers identify critical ...

The Codex app for Windows already has over 500,000 developers in waitlist. Here's everything you need to know.

OpenAI today released the Codex app for Windows, powered by OpenAI’s frontier coding models, and it’s now the only coding agent with a first-class Windows experience.

OpenAI has released its Codex desktop app for Windows, adding a native sandbox and PowerShell support, enabling developers to run parallel coding agents.

After debuting on macOS, OpenAI has brought its standalone Codex app to Windows. (OpenAI) At the start of February, OpenAI upgraded its Codex coding app to give it the ability to manage multiple AI ...