Both GPT-5.4 models are optimised for “sub-agent workflows,” where multiple AI systems collaborate—larger models handle complex reasoning while smaller ones execute specific tasks. Moments after Sam ...

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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 ...

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On March 17, 2026, OpenAI announced the release of ' GPT-5.4 mini ' and ' GPT-5.4 nano,' lightweight versions of GPT-5.4, which debuted in March 2026. GPT-5.4 mini/nano are designed to be fast and ...

AI startup OpenAI has released the GPT-5.4 mini and nano models, both of which are designed for high-throughput workloads. According to OpenAI, the GPT-5.4 mini model, when compared to GPT-5 mini, ...

OpenAI (OPENAI) has launched GPT‑5.4 mini and nano, its most capable small models yet, according to the ChatGPT maker. The company said GPT‑5.4 mini significantly improves over GPT‑5 mini across ...

OpenAI has released new models with the launch of GPT-5.4 mini and nano, described as the company's "most capable small models yet." ChatGPT users can begin using GPT-5.4 mini starting today. These ...

The flurry of model releases comes as the generative AI space becomes more competitive. The company had been fielding tough competition from Google's Gemini models last year. The beginning of this ...

OpenAI on Wednesday released GPT-5.4 mini and nano, bringing many of the capabilities of its flagship GPT-5.4 model to faster, cheaper models built for high-volume workloads. GPT-5.4 mini is a ...