GPT-6 Luna (High) vs GPT-6 Luna (Low)
Which is better for the money: GPT-6 Luna (High) by OpenAI or GPT-6 Luna (Low) by OpenAI? 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
GPT-6 Luna (High) scores 11.4 points higher (32.9 vs 21.5) but costs 4.5× as much to run the benchmark ($47.9 vs $10.6; both budget class). They are not alternatives at one budget: pick GPT-6 Luna (High) when you need intelligence above 21.5, and GPT-6 Luna (Low) when 21.5 is enough.
| Metric | GPT-6 Luna (High) | GPT-6 Luna (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.9 | 21.5 | −34.7% GPT-6 Luna (Low) is 34.7% less intelligent |
| Total AA cost (lower is better) | $47.85 | $10.63 | −77.8% GPT-6 Luna (Low) is 77.8% cheaper |
| End-to-end time (lower is better) | 12.43s | 6.60s | −46.9% GPT-6 Luna (Low) is 46.9% faster |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Luna (Low) vs GPT-6 Luna (High): 34.7% less intelligence, 77.8% less cost to run the AA benchmark, and 46.9% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (High) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Luna (Low) is on today's frontier: nothing is both smarter and cheaper.
GPT-6 Luna (High)GPT-6 Luna (Low)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-high/gpt-6-luna-low · Markdown: /api/v1/compare/gpt-6-luna-high/gpt-6-luna-low?format=md · llms.txt · agent skill