Head to head

Gemini 3.5 Flash vs Gemini 2.5 Pro

On a blended workload of one million input tokens and three million output tokens, Gemini 3.5 Flash is 1.1× cheaper than Gemini 2.5 Pro.

Gemini 3.5 FlashGemini 2.5 Pro
Provider Google Google
Input / MTok $1.5 $1.25
Output / MTok $9 $10
Cache read / MTok $0.15 $0.125
Context window
Blended 1M in + 3M out $28.50 $31.25
Status ga ga

Gemini 3.5 Flash detail   Gemini 2.5 Pro detail