Gemini 2.5 Flash vs Mistral Medium 3.5

Both are Mid-tier models, from Google and Mistral AI respectively. Gemini 2.5 Flash is the cheaper choice overall at a 4:1 input:output ratio.

Which is cheaper

Side by side

SpecGemini 2.5 FlashMistral Medium 3.5
ProviderGoogleMistral AI
TierMidMid
Context window1M256K
Max output——
Input $/1M$0.30$1.50
Output $/1M$2.50$7.50
Cache read $/1M$0.03—
Modalitiestext, imagetext

Gemini 2.5 Flash. Standard tier, text/image/video rate; audio input $1.00/1M. Cache storage $1.00/1M tokens/hour. Page explicitly states this model supports a 1M token context window.

Sources

Gemini 2.5 Flash — verified August 29, 2026

Mistral Medium 3.5 — verified August 29, 2026

Full Gemini 2.5 Flash pricing page → · Full Mistral Medium 3.5 pricing page →