GPT-6 Astra (Medium) vs Solar Pro 3
Which is better for the money: GPT-6 Astra (Medium) by OpenAI or Solar Pro 3 by Upstage? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
GPT-6 Astra (Medium) scores 41.8 points higher (49.6 vs 7.8) but costs 15× as much to run the benchmark ($2434 vs $159; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-6 Astra (Medium) when you need intelligence above 7.8, and Solar Pro 3 when 7.8 is enough.
| Metric | GPT-6 Astra (Medium) | Solar Pro 3 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 49.6 | 7.8 | −84.3% Solar Pro 3 is 84.3% less intelligent |
| Total AA cost (lower is better) | $2,434.12 | $159.22 | −93.5% Solar Pro 3 is 93.5% cheaper |
| End-to-end time (lower is better) | 14.07s | 18.89s | +34.3% Solar Pro 3 is 34.3% slower |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $0.15 / $0.60 | |
| Input modalities | Text, Image | Text |
Solar Pro 3 vs GPT-6 Astra (Medium): 84.3% less intelligence, 93.5% less cost to run the AA benchmark, and 34.3% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Astra (Medium) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
- Solar Pro 3 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
GPT-6 Astra (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-6-astra-medium/solar-pro-3 · Markdown: /api/v1/compare/gpt-6-astra-medium/solar-pro-3?format=md · llms.txt · agent skill