OpenAI ships GPT-5.4 mini and nano, faster and more capable but up to 4x pricier
The Decoder
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Generative AI
OpenAI has released two new compact models - GPT-5.4 mini and nano - built for coding assistants, subagents, and computer control. GPT-5.4 mini nearly matches the full model's performance, but both new models come with a steep price hike over their predecessors. The article OpenAI ships GPT-5.