OpenAI Just Revealed Cheaper Versions of Its Flagship Model. Here’s How to Use Them

OpenAI’s GPT-5.4 mini and nano are here, and they’re designed to help you get stuff done on a budget.

BY BEN SHERRY, STAFF REPORTER @BENLUCASSHERRY

Illustration: Inc.; Photos: Courtesy OpenAI

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 models yet,” coming close to matching the default GPT-5.4 model’s abilities at coding and agentically operating........

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