xAI: Grok 4 vs Grok 4.20 Beta
Compare xAI: Grok 4 and Grok 4.20 Beta, both from xAI, context windows of 256K vs 2.0M, tested across 53 shared challenges. Updated April 2026.
Which is better, xAI: Grok 4 or Grok 4.20 Beta?
xAI: Grok 4 and Grok 4.20 Beta are both competitive models. xAI: Grok 4 costs $3/M input tokens vs $2/M for Grok 4.20 Beta. Context windows: 256K vs 2000K tokens. Compare their real outputs side by side below.
Key Differences Between xAI: Grok 4 and Grok 4.20 Beta
xAI: Grok 4 is made by xai while Grok 4.20 Beta is from xai. xAI: Grok 4 has a 256K token context window compared to Grok 4.20 Beta's 2000K. On pricing, xAI: Grok 4 costs $3/M input tokens vs $2/M for Grok 4.20 Beta.
Per 1M tokens
Grok 4.20 Beta is cheaper on both — 1.5× input, 2.5× output
No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window.
Style Comparison
xAI: Grok 4 uses 7.0x more emoji
