GPT-5.6 Luna (Xhigh) vs Llama 4 Scout
Which is better for the money: GPT-5.6 Luna (Xhigh) by OpenAI or Llama 4 Scout by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Trade-off
Verdict
Depends on your budget
GPT-5.6 Luna (Xhigh) scores 28.1 points higher (34.6 vs 6.5) but costs 2.4× as much to run the benchmark ($179 vs $73.6; both mid-range class). Pick GPT-5.6 Luna (Xhigh) when the extra intelligence is worth the premium, otherwise Llama 4 Scout.
| Metric | GPT-5.6 Luna (Xhigh) | Llama 4 Scout | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.6 | 6.5 | −81.2% Llama 4 Scout is 81.2% less intelligent |
| Total AA cost (lower is better) | $179.33 | $73.56 | −59.0% Llama 4 Scout is 59.0% cheaper |
| End-to-end time (lower is better) | 39.18s | 6.47s | −83.5% Llama 4 Scout is 83.5% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.18 / $0.66 | |
| Input modalities | Text, Image | Text, Image |
Llama 4 Scout vs GPT-5.6 Luna (Xhigh): 81.2% less intelligence, 59.0% less cost to run the AA benchmark, and 83.5% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Terra (Medium) scores 41.30 for $175.
- Llama 4 Scout is off the frontier: at the same or lower cost, GPT-6 Luna (Xhigh) scores 34.60 for $66.8.
GPT-5.6 Luna (Xhigh)Llama 4 ScoutToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-luna-xhigh/llama-4-scout · Markdown: /api/v1/compare/gpt-5-6-luna-xhigh/llama-4-scout?format=md · llms.txt · agent skill