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Head to head

Kimi K3vsSeed 1.6 Flash

For tasks, about a month.

Verdict · measured basis

Seed 1.6 Flash costs $0.0013 per solved task against Kimi K3 at $0.16 — ▼ 125x cheaper. Over 200 tasks that is $33 a month.

On output token price alone Seed 1.6 Flash looks 50x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for Kimi K3 and Seed 1.6 Flash
FigureKimi K3Seed 1.6 Flash
Input $/Mtok$3$0.075
Output $/Mtok$15$0.3
Cached input $/Mtok$0.3$0.075
Pass rate43%75%
Cost per solved task$0.16measured$0.0013measured
Cost per month$33$0.26

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Seed 1.6 Flash (measured, $0.0013 per solved task), Kimi K3 (measured, $0.16 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.01$0.1$1$10$100$1k$10kTASKS / MONTH (log) →200 tasksSeed 1.6 Flash · MEASURED · $0.0013 per solved task$0.26Kimi K3 · MEASURED · $0.16 per solved task$33— Seed 1.6 Flash · MEASURED— Kimi K3 · MEASURED

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

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