GPT-5.6 Terra (Medium) vs Solar Pro 3
Which is better for the money: GPT-5.6 Terra (Medium) by OpenAI or Solar Pro 3 by Upstage? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
GPT-5.6 Terra (Medium) scores 22.3 points higher (30.1 vs 7.8) but costs 2.8× as much to run the benchmark ($447 vs $159; both mid-range class). Pick GPT-5.6 Terra (Medium) when the extra intelligence is worth the premium, otherwise Solar Pro 3.
| Metric | GPT-5.6 Terra (Medium) | Solar Pro 3 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 30.1 | 7.8 | −74.1% Solar Pro 3 is 74.1% less intelligent |
| Total AA cost (lower is better) | $446.53 | $159.22 | −64.3% Solar Pro 3 is 64.3% cheaper |
| End-to-end time (lower is better) | 5.85s | 18.94s | +223.8% Solar Pro 3 is 223.8% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $0.15 / $0.60 | |
| Input modalities | Text, Image | Text |
Solar Pro 3 vs GPT-5.6 Terra (Medium): 74.1% less intelligence, 64.3% less cost to run the AA benchmark, and 223.8% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Terra (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- Solar Pro 3 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
GPT-5.6 Terra (Medium)Solar Pro 3Today'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-medium/solar-pro-3 · Markdown: /api/v1/compare/gpt-5-6-terra-medium/solar-pro-3?format=md · llms.txt · agent skill