GPT-5.6 Luna (High) vs GPT-5.6 Luna (Non-reasoning)
Which is better for the money: GPT-5.6 Luna (High) by OpenAI or GPT-5.6 Luna (Non-reasoning) 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-5.6 Luna (High) scores 16.6 points higher (32.1 vs 15.5) but costs 4.7× as much to run the benchmark ($108 vs $23.0; mid-range vs budget cost classes). They are not alternatives at one budget: pick GPT-5.6 Luna (High) when you need intelligence above 15.5, and GPT-5.6 Luna (Non-reasoning) when 15.5 is enough.
| Metric | GPT-5.6 Luna (High) | GPT-5.6 Luna (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.1 | 15.5 | −51.7% GPT-5.6 Luna (Non-rea… is 51.7% less intelligent |
| Total AA cost (lower is better) | $108.15 | $22.97 | −78.8% GPT-5.6 Luna (Non-rea… is 78.8% cheaper |
| End-to-end time (lower is better) | 10.89s | 4.76s | −56.3% GPT-5.6 Luna (Non-rea… is 56.3% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.20 / $1.20 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.6 Luna (Non-reasoning) vs GPT-5.6 Luna (High): 51.7% less intelligence, 78.8% less cost to run the AA benchmark, and 56.3% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (High) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (High) scores 37.80 for $94.1.
- 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.
GPT-5.6 Luna (High)GPT-5.6 Luna (Non-reasoning)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-high/gpt-5-6-luna-non-reasoning · Markdown: /api/v1/compare/gpt-5-6-luna-high/gpt-5-6-luna-non-reasoning?format=md · llms.txt · agent skill