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Vercel April 2026 security incident

GPT 5.5 Pro

openai/gpt-5.5-pro

ReasoningTool UseImplicit CachingFile InputWeb SearchVision (Image)
index.ts
import { streamText } from 'ai'
const result = streamText({
model: 'openai/gpt-5.5-pro',
prompt: 'Why is the sky blue?'
})