Nemotron 3 Ultra vs 
Quasar Alpha
Nemotron 3 Ultra 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
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Which answer wins?
Price and specs
Not enough votes to call it. On the specs, Nemotron 3 Ultra has the edge: bigger model tier, newer.
| Spec | Nemotron 3 Ultra | Quasar Alpha |
|---|---|---|
| Input price | Free | — |
| Output price | Free | — |
| Context window | 1.0M tokens | 1.0M tokens |
| Weights | Open | — |
| Free API (OpenRouter) | Yes (1 provider) | — |
| Released | Jun 2026 | Apr 2025 |
| At 10M a month | $0 | not listed |
Input tokens at list price. No caching, no batch discount.
Where to run it
Nemotron 3 Ultra1 host
Quasar Alpha
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Nemotron 3 Ultra and Quasar Alpha?
Nemotron 3 Ultra is developed by NVIDIA while Quasar Alpha is developed by OpenRouter. Nemotron 3 Ultra has a 1.0M token context window vs Quasar Alpha's 1.0M. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.
Which is better, Nemotron 3 Ultra or Quasar Alpha?
It depends on your use case. Nemotron 3 Ultra and Quasar Alpha 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 Nemotron 3 Ultra and Quasar Alpha on Rival?
This page shows a side-by-side comparison of Nemotron 3 Ultra and Quasar Alpha 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
- Nemotron 3 Ultra vs Step 5 PreviewLanded Oct 2026
- Quasar Alpha vs Claude Haiku 5.5Landed Oct 2026
- Nemotron 3 Ultra vs Ling 3.1 FlashLanded Oct 2026
- Quasar Alpha vs Mistral Large 4Landed Oct 2026
- Nemotron 3 Ultra vs GPT-6.1 SolLanded Sep 2026
- Quasar Alpha vs Claude Sonnet 5.5Landed Sep 2026
- Nemotron 3 Ultra vs Solar Mini 4Landed Sep 2026
- Quasar Alpha vs Qwen3.8 Max PrimeLanded Sep 2026
Same lab, same size, long tail
- Nemotron 3 Ultra vs Nemotron 3 Nano Omni (free)Same lab
- Nemotron 3 Ultra vs Nemotron 3.5 LightningSame lab
- Quasar Alpha vs Ox AlphaSame lab
- Quasar Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
- Quasar Alpha vs Claude Fable 5New provider
- Quasar Alpha vs Claude Fable 5.1New provider
- Nemotron 3 Ultra vs Claude Haiku 4.5New provider
- Nemotron 3 Ultra vs Claude Opus 4Same size