GPT-6.1 Terra (Max) vs GPT-6 Luna (Max)
Which is better for the money: GPT-6.1 Terra (Max) by OpenAI or GPT-6 Luna (Max) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Trade-off
Verdict
Depends on your budget
GPT-6.1 Terra (Max) scores 10.0 points higher (48.1 vs 38.1) but costs 7.4× as much to run the benchmark ($909 vs $122; premium vs mid-range cost classes). They are not alternatives at one budget: pick GPT-6.1 Terra (Max) when you need intelligence above 38.1, and GPT-6 Luna (Max) when 38.1 is enough.
| Metric | GPT-6.1 Terra (Max) | GPT-6 Luna (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 48.1 | 38.1 | −20.8% GPT-6 Luna (Max) is 20.8% less intelligent |
| Total AA cost (lower is better) | $909.01 | $122.05 | −86.6% GPT-6 Luna (Max) is 86.6% cheaper |
| End-to-end time (lower is better) | 83.46s | 97.71s | +17.1% GPT-6 Luna (Max) is 17.1% slower |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Luna (Max) vs GPT-6.1 Terra (Max): 20.8% less intelligence, 86.6% less cost to run the AA benchmark, and 17.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6.1 Terra (Max) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- GPT-6 Luna (Max) is on today's frontier: nothing is both smarter and cheaper.
GPT-6.1 Terra (Max)GPT-6 Luna (Max)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-6-1-terra/gpt-6-luna · Markdown: /api/v1/compare/gpt-6-1-terra/gpt-6-luna?format=md · llms.txt · agent skill