Head to head

GPT-5 mini vs GPT-5 nano

On a blended workload of one million input tokens and three million output tokens, GPT-5 nano is 5.0× cheaper than GPT-5 mini.

GPT-5 miniGPT-5 nano
Provider OpenAI OpenAI
Input / MTok $0.25 $0.05
Output / MTok $2 $0.4
Cache read / MTok $0.025 $0.005
Context window
Blended 1M in + 3M out $6.25 $1.25
Status ga ga

GPT-5 mini detail   GPT-5 nano detail