Quasar Alpha vs 
Solar Mini 4
Quasar Alpha has a larger context window than Solar Mini 4 (1.0M tokens vs 524K tokens).
Minimalist Landing Page
Whole landing page for a startup that reads your face. It renders or it doesn't.
Loading the build
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Which answer wins?
Price and specs
Not enough votes to call it. On the specs, Quasar Alpha has the edge: bigger model tier, bigger context window.
| Spec | Quasar Alpha | Solar Mini 4 |
|---|---|---|
| Input price | — | $0.05/M tokens |
| Output price | — | $0.2/M tokens |
| Context window | 1.0M tokens | 524K tokens |
| Free API (OpenRouter) | — | No |
| Released | Apr 2025 | Sep 2026 |
| At 10M a month | not listed | $0.50 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Quasar Alpha
No hosts listed on OpenRouter.
Solar Mini 41 host
Per million tokens. Prices and uptime via OpenRouter, checked 28 Sep 2026.
Common questions
What is the difference between Quasar Alpha and Solar Mini 4?
Quasar Alpha is developed by OpenRouter while Solar Mini 4 is developed by Upstage. Quasar Alpha has a 1.0M token context window vs Solar Mini 4's 524K. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.
Which is better, Quasar Alpha or Solar Mini 4?
It depends on your use case. Quasar Alpha and Solar Mini 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 6 challenges so you can judge which fits your needs best.
How can I compare Quasar Alpha and Solar Mini 4 on Rival?
This page shows a side-by-side comparison of Quasar Alpha and Solar Mini 4 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.
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Same lab, same size, long tail
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