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Head to head

DeepSeek V4 ProvsGLM 5.3 Flash

For tasks, about a month.

Verdict · measured basis

GLM 5.3 Flash costs $0.0033 per solved task against DeepSeek V4 Pro at $0.21 — ▼ 63x cheaper. Over 200 tasks that is $41 a month.

On output token price alone GLM 5.3 Flash looks 16x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for DeepSeek V4 Pro and GLM 5.3 Flash
FigureDeepSeek V4 ProGLM 5.3 Flash
Input $/Mtok$1.32$0.075
Output $/Mtok$3.96$0.25
Cached input $/Mtok$0.044$0.015
Pass rate43%50%
Cost per solved task$0.21measured$0.0033measured
Cost per month$42$0.67

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for GLM 5.3 Flash (measured, $0.0033 per solved task), DeepSeek V4 Pro (measured, $0.21 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.1$1$10$100$1k$10kTASKS / MONTH (log) →200 tasksGLM 5.3 Flash · MEASURED · $0.0033 per solved task$0.67DeepSeek V4 Pro · MEASURED · $0.21 per solved task$42— GLM 5.3 Flash · MEASURED— DeepSeek V4 Pro · MEASURED

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

Source: Artificial Analysis (artificialanalysis.ai) · verified 2026-08-21 · prices from each provider's pricing page; measured rows ignore the tier · Methodology · All models at these settings