GPT-5.6 Terra (Low) vs GPT-6 Sol (High)
Which is better for the money: GPT-5.6 Terra (Low) by OpenAI or GPT-6 Sol (High) 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 (High) scores 14.9 points higher (42.4 vs 27.5) but costs 1.7× as much to run the benchmark ($605 vs $350; premium vs mid-range cost classes). Pick GPT-6 Sol (High) when the extra intelligence is worth the premium, otherwise GPT-5.6 Terra (Low).
| Metric | GPT-5.6 Terra (Low) | GPT-6 Sol (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 27.5 | 42.4 | +54.2% GPT-6 Sol (High) is 54.2% more intelligent |
| Total AA cost (lower is better) | $350.36 | $604.52 | +72.5% GPT-6 Sol (High) is 72.5% more expensive |
| End-to-end time (lower is better) | 5.92s | 22.47s | +279.6% GPT-6 Sol (High) is 279.6% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (High) vs GPT-5.6 Terra (Low): 54.2% more intelligence, 72.5% more cost to run the AA benchmark, and 279.6% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Terra (Low) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- GPT-6 Sol (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
GPT-5.6 Terra (Low)GPT-6 Sol (High)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-low/gpt-6-sol-high · Markdown: /api/v1/compare/gpt-5-6-terra-low/gpt-6-sol-high?format=md · llms.txt · agent skill