Head to head
MI vs For light moderate heavy
Verdict · measured basis
Phi 4 costs $0.0000 per solved task against
Ministral 8B at $0.0001 — ▼ 2.6x cheaper .
Over 200 tasks that is $0.01 a month.
On output token price alone Ministral 8B looks 1.3x 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 Phi 4 and Ministral 8B Figure Phi 4 Ministral 8B Input $/Mtok $0.07 $0.11 Output $/Mtok $0.14 $0.11 Cached input $/Mtok $0.07 $0.11 Pass rate 67% 25% Cost per solved task $0.0000 measured $0.0001 measured Cost per month $0.01 $0.02
Cost per month against tasks per month · drag the marker
Monthly cost against tasks per month Log-log lines for Phi 4 (measured, $0.0000 per solved task), Ministral 8B (measured, $0.0001 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 Phi 4 · MEASURED · $0.0000 per solved task $0.01 Phi 4 MEASURED Ministral 8B · MEASURED · $0.0001 per solved task $0.02 Ministral 8B MEASURED Monthly cost against tasks per month Log-log lines for Phi 4 (measured, $0.0000 per solved task), Ministral 8B (measured, $0.0001 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 Phi 4 · MEASURED · $0.0000 per solved task $0.01 Ministral 8B · MEASURED · $0.0001 per solved task $0.02 — Phi 4 · MEASURED — Ministral 8B · 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