What is the difference between Claude Opus 4.5 and Grok 3 Mini Beta?

Claude Opus 4.5 is developed by Anthropic while Grok 3 Mini Beta is developed by xAI. You can compare their actual outputs across 13 challenges on RIVAL to see how they differ in practice.

Which is better, Claude Opus 4.5 or Grok 3 Mini Beta?

It depends on your use case. Claude Opus 4.5 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 can I compare Claude Opus 4.5 and Grok 3 Mini Beta on RIVAL?

This page shows a side-by-side comparison of Claude Opus 4.5 and Grok 3 Mini Beta across shared challenges. You can vote on which model produced the better output, and Pro users can create custom challenges to test both models with their own prompts.