Playground

Try any model on the shelf. Every answer is a real request, billed to your balance at the price on its card.

GPT-5.1$1.25 in / $10.00 out

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Answers here are real requests to real models, so they are billed to an account.

Model parameters
openai
GPT-5.1
About the model

How long the model thinks before it answers. Thinking costs more: those tokens are billed at the output rate.

TemperatureModel default

Lower is steadier, higher is more inventive.

Context400,000 tokens
Price$1.25 in / $10.00 out per 1M tokens