Head to head

GPT-5 vs GPT-4.1

On a blended workload of one million input tokens and three million output tokens, GPT-4.1 is 1.2× cheaper than GPT-5.

GPT-5GPT-4.1
Provider OpenAI OpenAI
Input / MTok $1.25 $2
Output / MTok $10 $8
Cache read / MTok $0.125 $0.5
Context window 1,047,576
Blended 1M in + 3M out $31.25 $26.00
Status ga ga

GPT-5 detail   GPT-4.1 detail