GPT-5.6 Sol (Xhigh) vs GPT-5.6 Terra (Xhigh)
Which is better for the money: GPT-5.6 Sol (Xhigh) 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 2026-10-27.
Trade-off
Verdict
Depends on your budget
GPT-5.6 Sol (Xhigh) scores 6.0 points higher (44.0 vs 38.0) but costs 1.8× as much to run the benchmark ($2082 vs $1187; flagship vs premium cost classes). Pick GPT-5.6 Sol (Xhigh) when the extra intelligence is worth the premium, otherwise GPT-5.6 Terra (Xhigh).
| Metric | GPT-5.6 Sol (Xhigh) | GPT-5.6 Terra (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 44.0 | 38.0 | −13.6% GPT-5.6 Terra (Xhigh) is 13.6% less intelligent |
| Total AA cost (lower is better) | $2,082.28 | $1,186.77 | −43.0% GPT-5.6 Terra (Xhigh) is 43.0% cheaper |
| End-to-end time (lower is better) | 62.25s | 31.98s | −48.6% GPT-5.6 Terra (Xhigh) is 48.6% 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 (Xhigh): 13.6% less intelligence, 43.0% less cost to run the AA benchmark, and 48.6% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Sol (Xhigh) 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) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Sol (Xhigh)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-xhigh/gpt-5-6-terra-xhigh · Markdown: /api/v1/compare/gpt-5-6-sol-xhigh/gpt-5-6-terra-xhigh?format=md · llms.txt · agent skill