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Head to head

Llama 3.2 3B InstructvsLlama 3.1 8B Instruct

For tasks, about a month.

Verdict · measured basis

Llama 3.1 8B Instruct costs $0.0000 per solved task against Llama 3.2 3B Instruct at $0.0001 — ▼ 3.4x cheaper. Over 200 tasks that is $0.02 a month.

On output token price alone Llama 3.1 8B Instruct looks 4.1x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for Llama 3.2 3B Instruct and Llama 3.1 8B Instruct
FigureLlama 3.2 3B InstructLlama 3.1 8B Instruct
Input $/Mtok$0.05$0.05
Output $/Mtok$0.33$0.08
Cached input $/Mtok$0.05$0.025
Pass rate33%42%
Cost per solved task$0.0001measured$0.0000measured
Cost per month$0.03$0.01

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Llama 3.1 8B Instruct (measured, $0.0000 per solved task), Llama 3.2 3B Instruct (measured, $0.0001 per solved task) from 10 to 100,000 tasks a month. Marker at 200 tasks.101001k10k100k$0.001$0.01$0.1$1$10TASKS / MONTH (log) →200 tasksLlama 3.1 8B Instruct · MEASURED · $0.0000 per solved task$0.01Llama 3.2 3B Instruct · MEASURED · $0.0001 per solved task$0.03— Llama 3.1 8B Instruct · MEASURED— Llama 3.2 3B Instruct · 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