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Head to head

DeepSeek V4 Flash 0731vsMistral Small 3

For tasks, about a month.

Verdict · measured basis

Mistral Small 3 costs $0.0000 per solved task against DeepSeek V4 Flash 0731 at $0.0002 — ▼ 4.5x cheaper. Over 200 tasks that is $0.03 a month.

On output token price alone Mistral Small 3 looks 1.5x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for DeepSeek V4 Flash 0731 and Mistral Small 3
FigureDeepSeek V4 Flash 0731Mistral Small 3
Input $/Mtok$0.06$0.05
Output $/Mtok$0.12$0.08
Cached input $/Mtok$0.012$0.05
Pass rate89%61%
Cost per solved task$0.0002measured$0.0000measured
Cost per month$0.04$0.01

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Mistral Small 3 (measured, $0.0000 per solved task), DeepSeek V4 Flash 0731 (measured, $0.0002 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.001$0.01$0.1$1$10TASKS / MONTH (log) →200 tasksMistral Small 3 · MEASURED · $0.0000 per solved task$0.01DeepSeek V4 Flash 0731 · MEASURED · $0.0002 per solved task$0.04— Mistral Small 3 · MEASURED— DeepSeek V4 Flash 0731 · MEASURED

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

Solvency Bench (solvency.dev) — first-party measurement · verified 2026-08-26 · prices from each provider's pricing page; measured rows ignore the tier · Methodology · All models at these settings