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Head to head

Qwen3.7 FlashvsQwen3.5-9B

For tasks, about a month.

Verdict · measured basis

Qwen3.7 Flash costs $0.0029 per solved task against Qwen3.5-9B at $0.0038 — ▼ 1.3x cheaper. Over 200 tasks that is $0.19 a month.

On output token price alone Qwen3.7 Flash looks 1.2x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for Qwen3.7 Flash and Qwen3.5-9B
FigureQwen3.7 FlashQwen3.5-9B
Input $/Mtok$0.03$0.1
Output $/Mtok$0.13$0.15
Cached input $/Mtok$0.006$0.1
Pass rate53%28%
Cost per solved task$0.0029measured$0.0038measured
Cost per month$0.58$0.77

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Qwen3.7 Flash (measured, $0.0029 per solved task), Qwen3.5-9B (measured, $0.0038 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.1$1$10$100TASKS / MONTH (log) →200 tasksQwen3.7 Flash · MEASURED · $0.0029 per solved task$0.58Qwen3.5-9B · MEASURED · $0.0038 per solved task$0.77— Qwen3.7 Flash · MEASURED— Qwen3.5-9B · 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