ModelsOpenAIgpt-5.5-proGPT 5.5 ProReasoningTool UseImplicit CachingFile InputWeb SearchVision (Image)index.ts1import { streamText } from 'ai'2 3const result = streamText({4 model: 'openai/gpt-5.5-pro',5 prompt: 'Why is the sky blue?'6})OverviewPlaygroundProvidersThroughputLatencyUptimeStatusSimilar