Grok 4.20 Beta
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Grok 4.20 Beta vs Grok Code Fast 1
Compare Grok 4.20 Beta and Grok Code Fast 1, both from xAI, context windows of 2.0M vs 256K, tested across 50 shared challenges. Updated March 2026.
Which is better, Grok 4.20 Beta or Grok Code Fast 1?
Grok 4.20 Beta and Grok Code Fast 1 are both competitive models. Grok 4.20 Beta costs $2/M input tokens vs $0.2/M for Grok Code Fast 1. Context windows: 2000K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 4.20 Beta and Grok Code Fast 1
Grok 4.20 Beta is made by xai while Grok Code Fast 1 is from xai. Grok 4.20 Beta has a 2000K token context window compared to Grok Code Fast 1's 256K. On pricing, Grok 4.20 Beta costs $2/M input tokens vs $0.2/M for Grok Code Fast 1.
Our Verdict
Grok 4.20 Beta
Grok Code Fast 1Runner-up
No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window.
Grok Code Fast 1 is 4.0x cheaper per token — worth considering if cost matters.
Slight edge
FAQ
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