GPT-5.6 Sol (Low) vs GPT-6.1 Terra (Medium)
Which is better for the money: GPT-5.6 Sol (Low) by OpenAI or GPT-6.1 Terra (Medium) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-6.1 Terra (Medium)
GPT-6.1 Terra (Medium) vs GPT-5.6 Sol (Low): 23.3% more intelligence, 72.5% less cost to run the AA benchmark, and 17.3% faster end-to-end.
| Metric | GPT-5.6 Sol (Low) | GPT-6.1 Terra (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 33.5 | 41.3 | +23.3% GPT-6.1 Terra (Medium) is 23.3% more intelligent |
| Total AA cost (lower is better) | $637.28 | $175.20 | −72.5% GPT-6.1 Terra (Medium) is 72.5% cheaper |
| End-to-end time (lower is better) | 8.38s | 6.93s | −17.3% GPT-6.1 Terra (Medium) is 17.3% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $1.00 / $5.00 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.6 Sol (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
- GPT-6.1 Terra (Medium) is on today's frontier: nothing is both smarter and cheaper.
GPT-5.6 Sol (Low)GPT-6.1 Terra (Medium)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-low/gpt-6-1-terra-medium · Markdown: /api/v1/compare/gpt-5-6-sol-low/gpt-6-1-terra-medium?format=md · llms.txt · agent skill