Grok 3 Mini Beta vs 
Nemotron 3 Ultra
Nemotron 3 Ultra is cheaper than Grok 3 Mini Beta at $0/M vs $0.4/M input tokens.
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?
Favorites
Movie
Album
Same pick
Book
City
Game
Grok 3 Mini BetaGrok 3 Mini Beta
The Matrix
The Dark Side of the Moon
I, Robot
San Francisco
The Legend of Zelda: Breath of the Wild
Nemotron 3 UltraNemotron 3 Ultra
The Shawshank Redemption
The Dark Side of the Moon
To Kill a Mockingbird
Kyoto
The Legend of Zelda: Ocarina of Time
Price and specs
Not enough votes to call it. On the specs, Nemotron 3 Ultra has the edge: bigger model tier, newer, bigger context window.
| Spec | Grok 3 Mini Beta | Nemotron 3 Ultra |
|---|---|---|
| Input price | $0.4/M tokens | Free |
| Output price | $0.8/M tokens | Free |
| Context window | 131K tokens | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | Yes (1 provider) |
| Released | Apr 2025 | Jun 2026 |
| At 10M a month | $4.00 | $0 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Grok 3 Mini Beta
No hosts listed on OpenRouter.
Nemotron 3 Ultra1 host
Per million tokens. Prices and uptime via OpenRouter, checked 11 Oct 2026.
Common questions
What is the difference between Grok 3 Mini Beta and Nemotron 3 Ultra?
Grok 3 Mini Beta is developed by xAI while Nemotron 3 Ultra is developed by NVIDIA. Grok 3 Mini Beta has a 131K token context window vs Nemotron 3 Ultra's 1.0M. You can compare their actual outputs across 13 challenges on Rival to see how they differ in practice.
Which is better, Grok 3 Mini Beta or Nemotron 3 Ultra?
It depends on your use case. Grok 3 Mini Beta and Nemotron 3 Ultra each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 13 challenges so you can judge which fits your needs best.
How much does Grok 3 Mini Beta cost compared to Nemotron 3 Ultra?
Grok 3 Mini Beta costs $0.4/M input tokens and Nemotron 3 Ultra costs $0/M input tokens. Nemotron 3 Ultra is $0.40/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
How can I compare Grok 3 Mini Beta and Nemotron 3 Ultra on Rival?
This page shows a side-by-side comparison of Grok 3 Mini Beta and Nemotron 3 Ultra 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
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Same lab, same size, long tail
- Grok 3 Mini Beta vs Grok 4.7Same lab
- Grok 3 Mini Beta vs Grok 4.6Version compare
- Nemotron 3 Ultra vs Nemotron 3 Nano Omni (free)Same lab
- Nemotron 3 Ultra vs Nemotron 3.5 LightningSame lab
- Grok 3 Mini Beta vs Gemini 3.1 Flash LiteSame size
- Grok 3 Mini Beta vs Gemini 3.1 Flash Lite PreviewSame size
- Grok 3 Mini Beta vs Gemini 3.1 Pro PreviewNew provider
- Grok 3 Mini Beta vs Gemini 3.5 FlashNew provider
