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The Domesday Book ofKWJ · AI

Claude Sonnet 4.6 vs Mistral Large 3

Sonnet on most benchmarks; Mistral for EU data residency and French/German.

Claude Sonnet 4.6
The workhorse. Faster than Opus, smarter than Haiku, the model most production deployments end up on.

Use this when

General production, JSON adherence, US deployment.

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Mistral Large 3
The European frontier model. Codes well, refuses politely, and keeps your data in the EU.

Use this when

EU data residency, GDPR compliance, French or German primary language.

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Cost comparison

Sonnet $3/$15 per M; Mistral $2/$6 per M.