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OpenAI: GPT-5.1

openai/gpt-5.1

GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...

specs & pricing
Type
text
Provider
openai
Model ID
openai/gpt-5.1
Capabilities
vision, tools, reasoning
Context window
400K tokens
Input price
$1.38 / 1M tokens
Output price
$11.00 / 1M tokens

Cloud price is billed from prepaid credits when a request fails over to the cloud. Open-weight models run free on GPUs you own — the gateway routes to your nodes first.