WeavePrism

Claude Opus 4.5 vs Mistral Medium 3

Mistral Medium 3 costs 92% less at typical usage ($0.80 vs $10.0 per 1M tokens). Claude Opus 4.5 scores higher on 11 of 11 tasks.

SpecClaude Opus 4.5Mistral Medium 3
Input /1M$5.00$0.40
Output /1M$25.0$2.00
Typical /1M$10.0$0.80
Context window200k128k
SpeedMeasuredFast
PrivacyStrongStrong
Open weightsNoNo
Claude Opus 4.5
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

Coding99/83
Agents99/80
Reasoning98/84
Writing96/84
Chat92/86
Classify90/84
Extract92/84
Summarize94/85
Translate90/88
Vision93/82
General96/83

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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.