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GPT 5.4 Nano

GPT 5.4 Nano is the smallest and most affordable model in the GPT-5.4 family, performing close to GPT-5.4 Mini in evaluations at a lower price point, built for high-volume sub-agent workflows.

ReasoningTool UseImplicit CachingWeb SearchVision (Image)File Input
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'openai/gpt-5.4-nano',
  prompt: 'Why is the sky blue?'
})
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Playground

Try out GPT 5.4 Nano by OpenAI. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.