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Head to head

Qwen3.5-9BvsSeed-2.0-Mini

For tasks, about a month.

Verdict · measured basis

Seed-2.0-Mini costs $0.0014 per solved task against Qwen3.5-9B at $0.0038▼ 2.7x cheaper. Over 200 tasks that is $0.48 a month.

On output token price alone Qwen3.5-9B looks 2.7x cheaper. The ranking reverses once you divide by pass rate — the cheaper tokens do not win the task.

Verified pricing, pass rate and cost per solved task for Qwen3.5-9B and Seed-2.0-Mini
FigureQwen3.5-9BSeed-2.0-Mini
Input $/Mtok$0.1$0.1
Output $/Mtok$0.15$0.4
Cached input $/Mtok$0.1$0.1
Pass rate28%94%
Cost per solved task$0.0038measured$0.0014measured
Cost per month$0.77$0.28

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Seed-2.0-Mini (measured, $0.0014 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$0.01$0.1$1$10$100TASKS / MONTH (log) →200 tasksSeed-2.0-Mini · MEASURED · $0.0014 per solved task$0.28Qwen3.5-9B · MEASURED · $0.0038 per solved task$0.77— Seed-2.0-Mini · 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