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Head to head

GLM-5.3vsDeepSeek V4 Flash 0731

For tasks, about a month.

Verdict · measured basis

DeepSeek V4 Flash 0731 costs $0.0002 per solved task against GLM-5.3 at $0.10 — ▼ 552x cheaper. Over 200 tasks that is $20 a month.

On output token price alone DeepSeek V4 Flash 0731 looks 37x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for GLM-5.3 and DeepSeek V4 Flash 0731
FigureGLM-5.3DeepSeek V4 Flash 0731
Input $/Mtok$1.4$0.06
Output $/Mtok$4.4$0.12
Cached input $/Mtok$0.26$0.012
Pass rate33%89%
Cost per solved task$0.10measured$0.0002measured
Cost per month$20$0.04

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for DeepSeek V4 Flash 0731 (measured, $0.0002 per solved task), GLM-5.3 (measured, $0.10 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.001$0.01$0.1$1$10$100$1k$10kTASKS / MONTH (log) →200 tasksDeepSeek V4 Flash 0731 · MEASURED · $0.0002 per solved task$0.04GLM-5.3 · MEASURED · $0.10 per solved task$20— DeepSeek V4 Flash 0731 · MEASURED— GLM-5.3 · 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