Grok 3 Beta vs xAI: Grok 4
Compare Grok 3 Beta and xAI: Grok 4, both from xAI, context windows of 131K vs 256K, tested across 53 shared challenges. Updated May 2026.
Which is better, Grok 3 Beta or xAI: Grok 4?
Grok 3 Beta and xAI: Grok 4 are both competitive models. Grok 3 Beta costs $2/M input tokens vs $3/M for xAI: Grok 4. Context windows: 131K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 Beta and xAI: Grok 4
Grok 3 Beta is made by xai while xAI: Grok 4 is from xai. Grok 3 Beta has a 131K token context window compared to xAI: Grok 4's 256K. On pricing, Grok 3 Beta costs $2/M input tokens vs $3/M for xAI: Grok 4.
Per 1M tokens
Grok 3 Beta is cheaper on both — 1.5× input, 3.8× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Grok 3 Beta is 3.8x cheaper per token — worth considering if cost matters.
Style Comparison
xAI: Grok 4 uses 7.0x more emoji
