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Head to head

Kimi K3vsLaguna S 2.1

For tasks, about a month.

Verdict · measured basis

Laguna S 2.1 costs $0.0044 per solved task against Kimi K3 at $0.16 — ▼ 37x cheaper. Over 200 tasks that is $32 a month.

On output token price alone Laguna S 2.1 looks 83x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for Kimi K3 and Laguna S 2.1
FigureKimi K3Laguna S 2.1
Input $/Mtok$3$0.09
Output $/Mtok$15$0.18
Cached input $/Mtok$0.3$0.009
Pass rate43%23%
Cost per solved task$0.16measured$0.0044measured
Cost per month$33$0.89

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Laguna S 2.1 (measured, $0.0044 per solved task), Kimi K3 (measured, $0.16 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.1$1$10$100$1k$10kTASKS / MONTH (log) →200 tasksLaguna S 2.1 · MEASURED · $0.0044 per solved task$0.89Kimi K3 · MEASURED · $0.16 per solved task$33— Laguna S 2.1 · 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