Head to head

GPT-5.4 vs Kimi K3

On a blended workload of one million input tokens and three million output tokens, GPT-5.4 is line-ball with Kimi K3.

GPT-5.4Kimi K3
Provider OpenAI Together AI
Input / MTok $2.5 $3
Output / MTok $15 $15
Cache read / MTok $0.25
Context window 1,000,000
Blended 1M in + 3M out $47.50 $48.00
Status ga ga

GPT-5.4 detail   Kimi K3 detail