GPT-5.6 Luna (Max) vs Grok 4.7 (Xhigh)
Which is better for the money: GPT-5.6 Luna (Max) by OpenAI or Grok 4.7 (Xhigh) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Grok 4.7 (Xhigh) scores 9.1 points higher (46.4 vs 37.3) but costs 16× as much to run the benchmark ($4967 vs $320; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Grok 4.7 (Xhigh) when you need intelligence above 37.3, and GPT-5.6 Luna (Max) when 37.3 is enough.
| Metric | GPT-5.6 Luna (Max) | Grok 4.7 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.3 | 46.4 | +24.4% Grok 4.7 (Xhigh) is 24.4% more intelligent |
| Total AA cost (lower is better) | $319.93 | $4,967.35 | +1452.6% Grok 4.7 (Xhigh) is 16× more expensive |
| End-to-end time (lower is better) | 85.38s | 40.31s | −52.8% Grok 4.7 (Xhigh) is 52.8% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.7 (Xhigh) vs GPT-5.6 Luna (Max): 24.4% more intelligence, 1452.6% more cost to run the AA benchmark, and 52.8% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Max) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- Grok 4.7 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
GPT-5.6 Luna (Max)Grok 4.7 (Xhigh)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-luna/grok-4-7 · Markdown: /api/v1/compare/gpt-5-6-luna/grok-4-7?format=md · llms.txt · agent skill