Head to head
Solar Pro 4vsPhi 4
For tasks, about a month.
Verdict · measured basis
Phi 4 costs $0.0000 per solved task against
Solar Pro 4 at $0.0003 — ▼ 7.3x cheaper.
Over 200 tasks that is $0.05 a month.
On output token price alone Phi 4 looks 8.6x cheaper. The ranking holds, but the margin changes.
Verified pricing, pass rate and cost per solved task for Solar Pro 4 and Phi 4| Figure | Solar Pro 4 | Phi 4 |
|---|
| Input $/Mtok | $0.3 | $0.07 |
|---|
| Output $/Mtok | $1.2 | $0.14 |
|---|
| Cached input $/Mtok | $0.06 | $0.07 |
|---|
| Pass rate | 75% | 67% |
|---|
| Cost per solved task | $0.0003measured | $0.0000measured |
|---|
| Cost per month | $0.06 | $0.01 |
|---|
Cost per month against tasks per month · drag the marker
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