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GPT-4.1 nano

GPT-4.1 nano is the smallest and fastest model in the GPT-4.1 family, designed for high-volume, low-latency tasks like classification, autocomplete, and routing, delivering strong results on MMLU at the lowest price point in the GPT-4.1 lineup.

File InputTool UseVision (Image)Implicit Caching
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'openai/gpt-4.1-nano',
  prompt: 'Why is the sky blue?'
})
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Playground

Try out GPT-4.1 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.