GPT-5.6 Luna (Non-reasoning) vs GPT-6 Luna (Non-reasoning)
Which is better for the money: GPT-5.6 Luna (Non-reasoning) by OpenAI or GPT-6 Luna (Non-reasoning) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-6 Luna (Non-reasoning)
GPT-6 Luna (Non-reasoning) vs GPT-5.6 Luna (Non-reasoning): 19.4% more intelligence, 16.6% less cost to run the AA benchmark, and 1.9% faster end-to-end.
| Metric | GPT-5.6 Luna (Non-reasoning) | GPT-6 Luna (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 15.5 | 18.5 | +19.4% GPT-6 Luna (Non-reaso… is 19.4% more intelligent |
| Total AA cost (lower is better) | $22.97 | $19.16 | −16.6% GPT-6 Luna (Non-reaso… is 16.6% cheaper |
| End-to-end time (lower is better) | 5.16s | 5.06s | −1.9% GPT-6 Luna (Non-reaso… is 1.9% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
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.
- GPT-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 (Non-reasoning)GPT-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-non-reasoning/gpt-6-luna-non-reasoning · Markdown: /api/v1/compare/gpt-5-6-luna-non-reasoning/gpt-6-luna-non-reasoning?format=md · llms.txt · agent skill