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 nano$0.05 in / $0.40 out

Pick a model and send a message. This is the real gateway, not a demo.

Sign in to send a message

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

Model parameters
openai
GPT-5 nano
About the model

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

This model has no temperature setting.

Context400,000 tokens
Price$0.05 in / $0.40 out per 1M tokens