GPT-6 Luna (Max) vs Grok 4.6 (High)
Which is better for the money: GPT-6 Luna (Max) by OpenAI or Grok 4.6 (High) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Grok 4.6 (High) scores 6.2 points higher (44.3 vs 38.1) but costs 16× as much to run the benchmark ($1963 vs $122; premium vs mid-range cost classes). They are not alternatives at one budget: pick Grok 4.6 (High) when you need intelligence above 38.1, and GPT-6 Luna (Max) when 38.1 is enough.
| Metric | GPT-6 Luna (Max) | Grok 4.6 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.1 | 44.3 | +16.3% Grok 4.6 (High) is 16.3% more intelligent |
| Total AA cost (lower is better) | $122.05 | $1,962.90 | +1508.3% Grok 4.6 (High) is 16× more expensive |
| End-to-end time (lower is better) | 84.41s | 35.57s | −57.9% Grok 4.6 (High) is 57.9% faster |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.6 (High) vs GPT-6 Luna (Max): 16.3% more intelligence, 1508.3% more cost to run the AA benchmark, and 57.9% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Max) is on today's frontier: nothing is both smarter and cheaper.
- Grok 4.6 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-6 Luna (Max)Grok 4.6 (High)Today's Pareto frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-6-luna/grok-4-6 · Markdown: /api/v1/compare/gpt-6-luna/grok-4-6?format=md · llms.txt · agent skill