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Head to head

GPT-5.6 TerravsLlama 3.1 70B Instruct

For tasks, about a month.

Verdict · measured basis

Llama 3.1 70B Instruct costs $0.0005 per solved task against GPT-5.6 Terra at $4.50 — ▼ 8491x cheaper. Over 200 tasks that is $900 a month.

On output token price alone Llama 3.1 70B Instruct looks 30x cheaper. The ranking holds, but the margin changes.

Verified pricing, pass rate and cost per solved task for GPT-5.6 Terra and Llama 3.1 70B Instruct
FigureGPT-5.6 TerraLlama 3.1 70B Instruct
Input $/Mtok$2$0.4
Output $/Mtok$12$0.4
Cached input $/Mtok$0.2$0.4
Pass rate60%50%
Cost per solved task$4.50measured$0.0005measured
Cost per month$900$0.11

Cost per month against tasks per month · drag the marker

Monthly cost against tasks per monthLog-log lines for Llama 3.1 70B Instruct (measured, $0.0005 per solved task), GPT-5.6 Terra (measured, $4.50 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 tasksLlama 3.1 70B Instruct · MEASURED · $0.0005 per solved task$0.11GPT-5.6 Terra · MEASURED · $4.50 per solved task$900— Llama 3.1 70B Instruct · MEASURED— GPT-5.6 Terra · 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