What is the difference between Claude Sonnet 5 and Grok 4.20 Multi-Agent Beta?

Claude Sonnet 5 is developed by Anthropic while Grok 4.20 Multi-Agent Beta is developed by xAI. Claude Sonnet 5 has a 1.0M token context window vs Grok 4.20 Multi-Agent Beta's 2.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 5 or Grok 4.20 Multi-Agent Beta?

It depends on your use case. Claude Sonnet 5 and Grok 4.20 Multi-Agent Beta each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude Sonnet 5 cost compared to Grok 4.20 Multi-Agent Beta?

Claude Sonnet 5 costs $2/M input tokens and Grok 4.20 Multi-Agent Beta costs $2/M input tokens. Grok 4.20 Multi-Agent Beta is $0.00/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 Sonnet 5 and Grok 4.20 Multi-Agent Beta on Rival?

This page shows a side-by-side comparison of Claude Sonnet 5 and Grok 4.20 Multi-Agent 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.

Updated Jun 2026

Claude Sonnet 5vsGrok 4.20 Multi-Agent Beta

Grok 4.20 Multi-Agent Beta has a larger context window than Claude Sonnet 5 (2.0M tokens vs 1.0M tokens).

Claude Sonnet 5 and Grok 4.20 Multi-Agent Beta compared across 53 shared prompts
Spec	Claude Sonnet 5	Grok 4.20 Multi-Agent Beta
Input price	$2/M tokens	$2/M tokens
Output price	$10/M tokens	$6/M tokens
Context window	1.0M tokens	2.0M tokens
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	Jun 2026	Mar 2026