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Head to head

Claude Opus 5vsMistral Nemo

For tasks, about a month.

Verdict · measured basis

Mistral Nemo costs $0.0000 per solved task against Claude Opus 5 at $0.10 — ▼ 5905x cheaper. Over 200 tasks that is $19 a month.

On output token price alone Mistral Nemo looks 833x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for Claude Opus 5 and Mistral Nemo
FigureClaude Opus 5Mistral Nemo
Input $/Mtok$5$0.019
Output $/Mtok$25$0.03
Cached input $/Mtok$0.5$0.019
Pass rate100%36%
Cost per solved task$0.10measured$0.0000measured
Cost per month$19$0.00

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Mistral Nemo (measured, $0.0000 per solved task), Claude Opus 5 (measured, $0.10 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.0001$0.001$0.01$0.1$1$10$100$1k$10kTASKS / MONTH (log) →200 tasksMistral Nemo · MEASURED · $0.0000 per solved task$0.00Claude Opus 5 · MEASURED · $0.10 per solved task$19— Mistral Nemo · MEASURED— Claude Opus 5 · MEASURED

Solid measured · dashed modeled · dotted stale. The gap is the verdict.

Solvency Bench (solvency.dev) — first-party measurement · verified 2026-08-21 · prices from each provider's pricing page; measured rows ignore the tier · Methodology · All models at these settings