Head to head

GPT-5 Pro vs GPT-4.1

On a blended workload of one million input tokens and three million output tokens, GPT-4.1 is 14.4× cheaper than GPT-5 Pro.

GPT-5 ProGPT-4.1
Provider OpenAI OpenAI
Input / MTok $15 $2
Output / MTok $120 $8
Cache read / MTok $0.5
Context window 1,047,576
Blended 1M in + 3M out $375.00 $26.00
Status ga ga

GPT-5 Pro detail   GPT-4.1 detail