openai
OpenAI: GPT-5 Nano
openai/gpt-5-nano
For $1, you can send approximately:
~317messages
How do we get this number?
One message = ~7,000 input tokens + ~7,000 output tokens
Input cost per message7,000 x $0.05/M = $0.000350
Output cost per message7,000 x $0.40/M = $0.002800
Total cost per message$0.003150
Messages for $1317.46
Context window
400k
tokens
Max response
128k
tokens
Input price
$0.05
per million tokens
Output price
$0.40
per million tokens
Modalities
Input:textInput:imageInput:fileOutput:text
Description
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...