GPT-5.6 Sol (Max) vs GPT-5.6 Terra (Xhigh)
Which is better for the money: GPT-5.6 Sol (Max) by OpenAI or GPT-5.6 Terra (Xhigh) 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-5.6 Sol (Max) scores 9.0 points higher (47.0 vs 38.0) but costs 2.9× as much to run the benchmark ($3465 vs $1187; flagship vs premium cost classes). Pick GPT-5.6 Sol (Max) when the extra intelligence is worth the premium, otherwise GPT-5.6 Terra (Xhigh).
| Metric | GPT-5.6 Sol (Max) | GPT-5.6 Terra (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 47.0 | 38.0 | −19.1% GPT-5.6 Terra (Xhigh) is 19.1% less intelligent |
| Total AA cost (lower is better) | $3,464.84 | $1,186.77 | −65.7% GPT-5.6 Terra (Xhigh) is 65.7% cheaper |
| End-to-end time (lower is better) | 122.88s | 36.37s | −70.4% GPT-5.6 Terra (Xhigh) is 70.4% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $2.00 / $12.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.6 Terra (Xhigh) vs GPT-5.6 Sol (Max): 19.1% less intelligence, 65.7% less cost to run the AA benchmark, and 70.4% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Sol (Max) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
- 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-5.6 Sol (Max)GPT-5.6 Terra (Xhigh)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-sol/gpt-5-6-terra-xhigh · Markdown: /api/v1/compare/gpt-5-6-sol/gpt-5-6-terra-xhigh?format=md · llms.txt · agent skill