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openai/gpt-5-nano

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger counterpa...

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400K max outputVision
Input $0.05/M · Output $0.40/M · Cache read $0.01/M
OutputReady

Your response will appear here

Choose an example or write a prompt, then click Run.

API details and access

Model Details

ProviderOpenAI
TypeLlm
Model IDopenai/gpt-5-nano

Capabilities

InputTextImage
OutputText
Context-
Max Output400,000
VisionSupported
Function CallingSupported

Access details

Responses API
Base URLhttps://api.sandbase.ai
API Endpoint/v1/responses
{
  "model": "openai/gpt-5-nano",
  "instructions": "You are a helpful assistant.",
  "input": "Hello",
  "max_output_tokens": 512
}

Pricing

Input$0.05 / 1M tokens
Output$0.40 / 1M tokens
Cache read$0.01 / 1M tokens

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