Quasar Alpha vs 
Qwen3.5 Plus 2026-02-15
Qwen3.5 Plus 2026-02-15 is the newer model, released after Quasar Alpha.
Minimalist Landing Page
Whole landing page for a startup that reads your face. It renders or it doesn't.
Loading the build
Loading the build
Which answer wins?
Price and specs
Not enough votes to call it. On the specs, Qwen3.5 Plus 2026-02-15 has the edge: bigger model tier, newer.
| Spec | Quasar Alpha | Qwen3.5 Plus 2026-02-15 |
|---|---|---|
| Input price | — | $0.4/M tokens |
| Output price | — | $2.4/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Parameters | Not disclosed | Not disclosed |
| Weights | — | Closed |
| Free API (OpenRouter) | — | No |
| Released | Apr 2025 | Feb 2026 |
| At 10M a month | not listed | $4.00 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Quasar Alpha
No hosts listed on OpenRouter.
Qwen3.5 Plus 2026-02-151 host
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Quasar Alpha and Qwen3.5 Plus 2026-02-15?
Quasar Alpha is developed by OpenRouter while Qwen3.5 Plus 2026-02-15 is developed by Qwen. Quasar Alpha has a 1.0M token context window vs Qwen3.5 Plus 2026-02-15's 1.0M. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.
Which is better, Quasar Alpha or Qwen3.5 Plus 2026-02-15?
It depends on your use case. Quasar Alpha and Qwen3.5 Plus 2026-02-15 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 Qwen3.5 Plus 2026-02-15 on Rival?
This page shows a side-by-side comparison of Quasar Alpha and Qwen3.5 Plus 2026-02-15 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.
More comparisons
Against the newest arrivals
- Quasar Alpha vs Step 5 PreviewLanded Oct 2026
- Qwen3.5 Plus 2026-02-15 vs Claude Haiku 5.5Landed Oct 2026
- Quasar Alpha vs Ling 3.1 FlashLanded Oct 2026
- Qwen3.5 Plus 2026-02-15 vs Mistral Large 4Landed Oct 2026
- Quasar Alpha vs GPT-6.1 SolLanded Sep 2026
- Qwen3.5 Plus 2026-02-15 vs Claude Sonnet 5.5Landed Sep 2026
- Quasar Alpha vs Solar Mini 4Landed Sep 2026
- Qwen3.5 Plus 2026-02-15 vs Qwen3.8 Max PrimeLanded Sep 2026
Same lab, same size, long tail
- Quasar Alpha vs Ox AlphaSame lab
- Quasar Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
- Qwen3.5 Plus 2026-02-15 vs Qwen3.5 397B A17BVersion compare
- Qwen3.5 Plus 2026-02-15 vs Qwen3.8 Omni FlashSame lab
- Quasar Alpha vs GPT-5.3-CodexNew provider
- Quasar Alpha vs GPT-5.4New provider
- Quasar Alpha vs GPT-5.4 MiniNew provider
- Quasar Alpha vs GPT-5.4 NanoNew provider