WeavePrism

GPT-5 nano vs Mistral Medium 3

GPT-5 nano costs 83% less at typical usage ($0.14 vs $0.80 per 1M tokens). Mistral Medium 3 scores higher on 11 of 11 tasks.

SpecGPT-5 nanoMistral Medium 3
Input /1M$0.05$0.40
Output /1M$0.40$2.00
Typical /1M$0.14$0.80
Context window400k128k
SpeedBlazingFast
PrivacyStandardStrong
Open weightsNoNo
GPT-5 nano
Steady since we started tracking (Jul 13, 2026)
Steady since we started tracking (Jul 13, 2026)
Mistral Medium 3
Steady since we started tracking (Jul 13, 2026)
Steady since we started tracking (Jul 13, 2026)

Quality by task

Coding72/83
Agents68/80
Reasoning74/84
Writing76/84
Chat80/86
Classify82/84
Extract80/84
Summarize80/85
Translate80/88
Vision78/82
General76/83

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Also compare Mistral Medium 3

Prices are list $/1M tokens, hand-maintained from public provider pricing. Task scores are benchmark-informed 0-100 estimates, not gospel — validate on your own evals before moving production traffic. Not affiliated with any model provider.