Head to head
LongCat 2.0vsQwen3.5-Flash
For tasks, about a month.
Verdict · measured basis
Qwen3.5-Flash costs $0.0015 per solved task against
LongCat 2.0 at $0.0036 — ▼ 2.5x cheaper.
Over 200 tasks that is $0.44 a month.
On output token price alone Qwen3.5-Flash looks 4.6x cheaper. The ranking holds, but the margin changes.
Verified pricing, pass rate and cost per solved task for LongCat 2.0 and Qwen3.5-Flash| Figure | LongCat 2.0 | Qwen3.5-Flash |
|---|
| Input $/Mtok | $0.3 | $0.065 |
|---|
| Output $/Mtok | $1.2 | $0.26 |
|---|
| Cached input $/Mtok | $0.006 | $0.065 |
|---|
| Pass rate | 81% | 89% |
|---|
| Cost per solved task | $0.0036measured | $0.0015measured |
|---|
| Cost per month | $0.73 | $0.29 |
|---|
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