GPT-5.5 Instant (June 2026) vs Solar Pro 3
Which is better for the money: GPT-5.5 Instant (June 2026) by OpenAI or Solar Pro 3 by Upstage? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-5.5 Instant (June 2026) scores 18.2 points higher (26.0 vs 7.8) but costs 7.4× as much to run the benchmark ($1184 vs $159; premium vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.5 Instant (June 2026) when you need intelligence above 7.8, and Solar Pro 3 when 7.8 is enough.
| Metric | GPT-5.5 Instant (June 2026) | Solar Pro 3 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.0 | 7.8 | −70.0% Solar Pro 3 is 70.0% less intelligent |
| Total AA cost (lower is better) | $1,184.34 | $159.22 | −86.6% Solar Pro 3 is 86.6% cheaper |
| End-to-end time (lower is better) | 16.70s | 18.36s | +9.9% Solar Pro 3 is 9.9% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $0.15 / $0.60 | |
| Input modalities | Text, Image | Text |
Solar Pro 3 vs GPT-5.5 Instant (June 2026): 70.0% less intelligence, 86.6% less cost to run the AA benchmark, and 9.9% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 Instant (June 2026) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Solar Pro 3 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
GPT-5.5 Instant (June 2026)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-5-5-instant-06-26/solar-pro-3 · Markdown: /api/v1/compare/gpt-5-5-instant-06-26/solar-pro-3?format=md · llms.txt · agent skill