Head to head
vs GR For light moderate heavy
Verdict · measured basis
GPT-4.1 Nano costs $0.0001 per solved task against
MythoMax 13B at $0.0002 — ▼ 1.9x cheaper .
Over 200 tasks that is $0.02 a month.
On output token price alone MythoMax 13B looks 6.7x cheaper. The ranking reverses once you divide by pass rate — the cheaper tokens do not win the task.
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Verified pricing, pass rate and cost per solved task for GPT-4.1 Nano and MythoMax 13B Figure GPT-4.1 Nano MythoMax 13B Input $/Mtok $0.1 $0.06 Output $/Mtok $0.4 $0.06 Cached input $/Mtok $0.025 $0.06 Pass rate 72% 11% Cost per solved task $0.0001 measured $0.0002 measured Cost per month $0.02 $0.04
Cost per month against tasks per month · drag the marker
Monthly cost against tasks per month Log-log lines for GPT-4.1 Nano (measured, $0.0001 per solved task), MythoMax 13B (measured, $0.0002 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks. 10 100 1k 10k 100k $0.001 $0.01 $0.1 $1 $10 TASKS / MONTH (log) → 200 tasks GPT-4.1 Nano · MEASURED · $0.0001 per solved task $0.02 GPT-4.1 Nano MEASURED MythoMax 13B · MEASURED · $0.0002 per solved task $0.04 MythoMax 13B MEASURED Monthly cost against tasks per month Log-log lines for GPT-4.1 Nano (measured, $0.0001 per solved task), MythoMax 13B (measured, $0.0002 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks. 10 100 1k 10k 100k $0.001 $0.01 $0.1 $1 $10 TASKS / MONTH (log) → 200 tasks GPT-4.1 Nano · MEASURED · $0.0001 per solved task $0.02 MythoMax 13B · MEASURED · $0.0002 per solved task $0.04 — GPT-4.1 Nano · MEASURED — MythoMax 13B · 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