GPT-5.6 Luna (Non-reasoning) vs Grok 4.7 (Low)
Which is better for the money: GPT-5.6 Luna (Non-reasoning) by OpenAI or Grok 4.7 (Low) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Grok 4.7 (Low) scores 26.7 points higher (42.2 vs 15.5) but costs 61× as much to run the benchmark ($1407 vs $23.0; premium vs budget cost classes). They are not alternatives at one budget: pick Grok 4.7 (Low) when you need intelligence above 15.5, and GPT-5.6 Luna (Non-reasoning) when 15.5 is enough.
| Metric | GPT-5.6 Luna (Non-reasoning) | Grok 4.7 (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 15.5 | 42.2 | +172.3% Grok 4.7 (Low) is 2.7× more intelligent |
| Total AA cost (lower is better) | $22.97 | $1,406.89 | +6024.9% Grok 4.7 (Low) is 61× more expensive |
| End-to-end time (lower is better) | 5.06s | 12.13s | +139.7% Grok 4.7 (Low) is 139.7% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.7 (Low) vs GPT-5.6 Luna (Non-reasoning): 172.3% more intelligence, 6024.9% more cost to run the AA benchmark, and 139.7% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
- Grok 4.7 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Luna (Non-reasoning)Grok 4.7 (Low)Today's Pareto 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-non-reasoning/grok-4-7-low · Markdown: /api/v1/compare/gpt-5-6-luna-non-reasoning/grok-4-7-low?format=md · llms.txt · agent skill