Claude Opus 4.7 vs 
Grok 3 Mini Beta
Grok 3 Mini Beta is cheaper than Claude Opus 4.7 at $0.4/M vs $5/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
Claude Opus 4.7Claude Opus 4.7
Arrival
The Dark Side of the Moon
Collected Fictions
Kyoto
Outer Wilds
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
Price and specs
Not enough votes to call it. On the specs, Claude Opus 4.7 has the edge: bigger model tier, newer, bigger context window. Grok 3 Mini Beta costs 31x less per token.
| Spec | Claude Opus 4.7 | Grok 3 Mini Beta |
|---|---|---|
| Input price | $5/M tokens | $0.4/M tokens |
| Output price | $25/M tokens | $0.8/M tokens |
| Context window | 1.0M tokens | 131K tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Apr 2026 | Apr 2025 |
| At 10M a month | $50.00 | $4.00 |
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 Claude Opus 4.7 and Grok 3 Mini Beta?
Claude Opus 4.7 is developed by Anthropic while Grok 3 Mini Beta is developed by xAI. Claude Opus 4.7 has a 1.0M token context window vs Grok 3 Mini Beta's 131K. You can compare their actual outputs across 13 challenges on Rival to see how they differ in practice.
Which is better, Claude Opus 4.7 or Grok 3 Mini Beta?
It depends on your use case. Claude Opus 4.7 and Grok 3 Mini Beta 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 Claude Opus 4.7 cost compared to Grok 3 Mini Beta?
Claude Opus 4.7 costs $5/M input tokens and Grok 3 Mini Beta costs $0.4/M input tokens. Grok 3 Mini Beta is $4.60/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 Claude Opus 4.7 and Grok 3 Mini Beta on Rival?
This page shows a side-by-side comparison of Claude Opus 4.7 and Grok 3 Mini Beta 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
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