GPT 5.4 Mini & 5.4 Nano: OpenAI Built a Team of AI Interns for Your AI Boss
The Neuron
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Generative AI
OpenAI released GPT-5.4 mini and nano, smaller models designed to work as subagents under the full GPT-5.4. The real story is what this reveals about where AI development is headed: teams of models, not single models, doing the work.