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Head to head

DeepSeek V4 FlashvsKimi K3

For tasks, about a month.

Verdict · measured basis

DeepSeek V4 Flash costs $0.02 per solved task against Kimi K3 at $0.16 — ▼ 8.8x cheaper. Over 200 tasks that is $29 a month.

On output token price alone DeepSeek V4 Flash looks 11x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for DeepSeek V4 Flash and Kimi K3
FigureDeepSeek V4 FlashKimi K3
Input $/Mtok$0.44$3
Output $/Mtok$1.32$15
Cached input $/Mtok$0.014$0.3
Pass rate73%43%
Cost per solved task$0.02measured$0.16measured
Cost per month$4$33

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for DeepSeek V4 Flash (measured, $0.02 per solved task), Kimi K3 (measured, $0.16 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$1$10$100$1k$10kTASKS / MONTH (log) →200 tasksDeepSeek V4 Flash · MEASURED · $0.02 per solved task$4Kimi K3 · MEASURED · $0.16 per solved task$33— DeepSeek V4 Flash · MEASURED— Kimi K3 · 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