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Head to head

GPT-5.6 SolvsLongCat 2.0

For tasks, about a month.

Verdict · measured basis

LongCat 2.0 costs $0.0036 per solved task against GPT-5.6 Sol at $0.0095 — ▼ 2.6x cheaper. Over 200 tasks that is $1 a month.

On output token price alone LongCat 2.0 looks 25x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for GPT-5.6 Sol and LongCat 2.0
FigureGPT-5.6 SolLongCat 2.0
Input $/Mtok$5$0.3
Output $/Mtok$30$1.2
Cached input $/Mtok$0.5$0.006
Pass rate100%81%
Cost per solved task$0.0095measured$0.0036measured
Cost per month$2$0.73

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for LongCat 2.0 (measured, $0.0036 per solved task), GPT-5.6 Sol (measured, $0.0095 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.1$1$10$100$1kTASKS / MONTH (log) →200 tasksLongCat 2.0 · MEASURED · $0.0036 per solved task$0.73GPT-5.6 Sol · MEASURED · $0.0095 per solved task$2— LongCat 2.0 · MEASURED— GPT-5.6 Sol · MEASURED

Solid measured · dashed modeled · dotted stale. The gap is the verdict.

Solvency Bench (solvency.dev) — first-party measurement · verified 2026-08-21 · prices from each provider's pricing page; measured rows ignore the tier · Methodology · All models at these settings