Grok 3 Mini Beta vs 
Nemotron 3.5 Lightning
Nemotron 3.5 Lightning is cheaper than Grok 3 Mini Beta at $0.08/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
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 3.5 LightningNemotron 3.5 Lightning
The Shawshank Redemption
OK Computer
Don Quijote de la Mancha
Tokyo
The Legend of Zelda: Ocarina of Time
Price and specs
Not enough votes to call it. On the specs, Nemotron 3.5 Lightning has the edge: bigger model tier, newer, bigger context window. Nemotron 3.5 Lightning costs 4.0x less per token.
| Spec | Grok 3 Mini Beta | Nemotron 3.5 Lightning |
|---|---|---|
| Input price | $0.4/M tokens | $0.08/M tokens |
| Output price | $0.8/M tokens | $0.2/M tokens |
| Context window | 131K tokens | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | Yes (1 provider) |
| Released | Apr 2025 | Aug 2026 |
| At 10M a month | $4.00 | $0.80 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Grok 3 Mini Beta
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Grok 3 Mini Beta and Nemotron 3.5 Lightning?
Grok 3 Mini Beta is developed by xAI while Nemotron 3.5 Lightning is developed by NVIDIA. Grok 3 Mini Beta has a 131K token context window vs Nemotron 3.5 Lightning'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 3.5 Lightning?
It depends on your use case. Grok 3 Mini Beta and Nemotron 3.5 Lightning 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 3.5 Lightning?
Grok 3 Mini Beta costs $0.4/M input tokens and Nemotron 3.5 Lightning costs $0.08/M input tokens. Nemotron 3.5 Lightning is $0.32/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 3.5 Lightning on Rival?
This page shows a side-by-side comparison of Grok 3 Mini Beta and Nemotron 3.5 Lightning 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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