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Head to head

GPT-5.6 Lunavsgpt-oss-safeguard-20b

For tasks, about a month.

Verdict · measured basis

gpt-oss-safeguard-20b costs $0.0002 per solved task against GPT-5.6 Luna at $2.65 — ▼ 13922x cheaper. Over 200 tasks that is $530 a month.

On output token price alone gpt-oss-safeguard-20b looks 4.0x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for GPT-5.6 Luna and gpt-oss-safeguard-20b
FigureGPT-5.6 Lunagpt-oss-safeguard-20b
Input $/Mtok$0.2$0.075
Output $/Mtok$1.2$0.3
Cached input $/Mtok$0.02$0.037
Pass rate57%97%
Cost per solved task$2.65measured$0.0002measured
Cost per month$530$0.04

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for gpt-oss-safeguard-20b (measured, $0.0002 per solved task), GPT-5.6 Luna (measured, $2.65 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.01$0.1$1$10$100$1k$10k$100kTASKS / MONTH (log) →200 tasksgpt-oss-safeguard-20b · MEASURED · $0.0002 per solved task$0.04GPT-5.6 Luna · MEASURED · $2.65 per solved task$530— gpt-oss-safeguard-20b · MEASURED— GPT-5.6 Luna · 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