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Head to head

Hermes 4 70BvsGPT-5 Nano

For tasks, about a month.

Verdict · measured basis

Hermes 4 70B costs $0.0001 per solved task against GPT-5 Nano at $0.0010 — ▼ 8.3x cheaper. Over 200 tasks that is $0.18 a month.

On output token price alone Hermes 4 70B looks 1.0x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for Hermes 4 70B and GPT-5 Nano
FigureHermes 4 70BGPT-5 Nano
Input $/Mtok$0.13$0.05
Output $/Mtok$0.4$0.4
Cached input $/Mtok$0.13$0.005
Pass rate58%100%
Cost per solved task$0.0001measured$0.0010measured
Cost per month$0.03$0.21

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Hermes 4 70B (measured, $0.0001 per solved task), GPT-5 Nano (measured, $0.0010 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.001$0.01$0.1$1$10$100TASKS / MONTH (log) →200 tasksHermes 4 70B · MEASURED · $0.0001 per solved task$0.03GPT-5 Nano · MEASURED · $0.0010 per solved task$0.21— Hermes 4 70B · MEASURED— GPT-5 Nano · 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