Smith, who tested Codex for a month and ended up rewriting a bunch of his apps and shipping versions for Windows and Android: I spent one month battle-testing Codex 5.3, the latest model from OpenAI, ...

OpenAI has launched two new models, GPT-5.4 mini and GPT-5.4 nano, following the release of GPT-5.4 earlier this month, which ...

OpenAI launches GPT-5.4 mini and nano, bringing near-flagship AI performance to free ChatGPT users at a fraction of the cost.

OpenAI’s GPT‑5.4 mini is now available in the API, Codex, and ChatGPT, whereas GPT‑5.4 nano is only available in the API.

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 launched GPT 5.4 mini and GPT 5.4 nano, the company's most capable small AI models yet: Here's how to use them ...

OpenAI just launched GPT 5.4 mini and nano models which are now live in the API, Codex, and ChatGPT with improved coding capabilities.

OpenAI's new small models are faster and cheaper than GPT-5.4—exactly what developers and businesses actually need.

OpenAI continues to ship new models with the release of GPT-5.4 mini and nano, its “most capable small models yet.” ChatGPT users can start using GPT-5.4 mini today. These flavors of GPT-5.4 are ...

OpenAI (OPENAI) has launched GPT‑5.4 mini and nano, its most capable small models yet, according to the ChatGPT maker.

OpenAI's new GPT-5.4 mini model offers performance improvements in reasoning, multimodal understanding and more.

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