GPT 5.4 Pro

openai/gpt-5.4-pro

GPT-5.4 pro uses more compute to think harder and provide consistently better answers. It's designed to tackle tough problems.

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index.ts
import { streamText } from 'ai'
const result = streamText({
model: 'openai/gpt-5.4-pro',
prompt: 'Why is the sky blue?'
})