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GPT 5.5

GPT 5.5 is the standard tier of the GPT-5.5 model family, advancing the GPT-5 series with stronger intent understanding, deeper autonomous work, and improvements across coding, research, data analysis, and document creation.

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

P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the docs for more info.