Claude Opus 4.1 vs Grok 4.20 Beta
Compare Claude Opus 4.1 by Anthropic against Grok 4.20 Beta by xAI, context windows of 200K vs 2.0M, tested across 53 shared challenges. Updated June 2026.
Which is better, Claude Opus 4.1 or Grok 4.20 Beta?
Claude Opus 4.1 and Grok 4.20 Beta are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $2/M for Grok 4.20 Beta. Context windows: 200K vs 2000K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and Grok 4.20 Beta
Claude Opus 4.1 is made by anthropic while Grok 4.20 Beta is from xai. Claude Opus 4.1 has a 200K token context window compared to Grok 4.20 Beta's 2000K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $2/M for Grok 4.20 Beta.
Per 1M tokens
Grok 4.20 Beta is cheaper on both — 7.5× input, 13× output
No community votes yet. On paper, Grok 4.20 Beta has the edge — newer, bigger context window.
Grok 4.20 Beta is 13x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4.1 uses 38.4x more emoji
