GPT-6.1 Terra (Max) vs GPT-6 Luna (Xhigh)
Which is better for the money: GPT-6.1 Terra (Max) by OpenAI or GPT-6 Luna (Xhigh) 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 13.5 points higher (48.1 vs 34.6) but costs 14× as much to run the benchmark ($909 vs $66.8; premium vs mid-range cost classes). They are not alternatives at one budget: pick GPT-6.1 Terra (Max) when you need intelligence above 34.6, and GPT-6 Luna (Xhigh) when 34.6 is enough.
| Metric | GPT-6.1 Terra (Max) | GPT-6 Luna (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 48.1 | 34.6 | −28.1% GPT-6 Luna (Xhigh) is 28.1% less intelligent |
| Total AA cost (lower is better) | $909.01 | $66.81 | −92.7% GPT-6 Luna (Xhigh) is 92.7% cheaper |
| End-to-end time (lower is better) | 83.46s | 27.33s | −67.3% GPT-6 Luna (Xhigh) is 67.3% faster |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Luna (Xhigh) vs GPT-6.1 Terra (Max): 28.1% less intelligence, 92.7% less cost to run the AA benchmark, and 67.3% faster 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 (Xhigh) is on today's frontier: nothing is both smarter and cheaper.
GPT-6.1 Terra (Max)GPT-6 Luna (Xhigh)Today's Pareto frontierEvery other model
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