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GPT 5.6 Sol (Fast)

GPT-5.6 Sol is the flagship of OpenAI's GPT-5.6 series, its most capable model for long-horizon agentic work across coding, biology, and cybersecurity. Your use is subject to OpenAI's Terms & Privacy Policies.

ReasoningTool UseImplicit CachingFile InputVision (Image)Web SearchWebsockets
Use with AI GatewayView docs
import { streamText } from 'ai'


const result = streamText({
  model: 'openai/gpt-5.6-sol-fast',
  prompt: 'Why is the sky blue?'
})
Read docs
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P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds. View the docs for more info.