GPT-5.6 Terra (Xhigh) vs GPT-6 Sol (Max)
Which is better for the money: GPT-5.6 Terra (Xhigh) by OpenAI or GPT-6 Sol (Max) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-6 Sol (Max) scores 9.6 points higher (47.6 vs 38.0) but costs 1.3× as much to run the benchmark ($1536 vs $1187; both premium class). Pick GPT-6 Sol (Max) when the extra intelligence is worth the premium, otherwise GPT-5.6 Terra (Xhigh).
| Metric | GPT-5.6 Terra (Xhigh) | GPT-6 Sol (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.0 | 47.6 | +25.3% GPT-6 Sol (Max) is 25.3% more intelligent |
| Total AA cost (lower is better) | $1,186.77 | $1,535.80 | +29.4% GPT-6 Sol (Max) is 29.4% more expensive |
| End-to-end time (lower is better) | 33.69s | 124.49s | +269.5% GPT-6 Sol (Max) is 269.5% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (Max) vs GPT-5.6 Terra (Xhigh): 25.3% more intelligence, 29.4% more cost to run the AA benchmark, and 269.5% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Terra (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GPT-6 Sol (Max) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Terra (Xhigh)GPT-6 Sol (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-5-6-terra-xhigh/gpt-6-sol · Markdown: /api/v1/compare/gpt-5-6-terra-xhigh/gpt-6-sol?format=md · llms.txt · agent skill