Head to head
Kimi K3vsGPT-5 Nano
For tasks, about a month.
Verdict · measured basis
GPT-5 Nano costs $0.0010 per solved task against
Kimi K3 at $0.16 — ▼ 156x cheaper.
Over 200 tasks that is $33 a month.
On output token price alone GPT-5 Nano looks 38x cheaper. The ranking holds, but the margin changes.
Verified pricing, pass rate and cost per solved task for Kimi K3 and GPT-5 Nano| Figure | Kimi K3 | GPT-5 Nano |
|---|
| Input $/Mtok | $3 | $0.05 |
|---|
| Output $/Mtok | $15 | $0.4 |
|---|
| Cached input $/Mtok | $0.3 | $0.005 |
|---|
| Pass rate | 43% | 100% |
|---|
| Cost per solved task | $0.16measured | $0.0010measured |
|---|
| Cost per month | $33 | $0.21 |
|---|
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