Grok 3 Mini Beta vs xAI: Grok 4
Compare Grok 3 Mini Beta and xAI: Grok 4, both from xAI, context windows of 131K vs 256K, tested across 13 shared challenges. Updated May 2026.
Which is better, Grok 3 Mini Beta or xAI: Grok 4?
Grok 3 Mini Beta and xAI: Grok 4 are both competitive models. Grok 3 Mini Beta costs $0.4/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 Mini Beta and xAI: Grok 4
Grok 3 Mini Beta is made by xai while xAI: Grok 4 is from xai. Grok 3 Mini Beta has a 131K token context window compared to xAI: Grok 4's 256K. On pricing, Grok 3 Mini Beta costs $0.4/M input tokens vs $3/M for xAI: Grok 4.
Per 1M tokens
Grok 3 Mini Beta is cheaper on both — 7.5× input, 19× output
No community votes yet. On paper, xAI: Grok 4 has the edge — bigger model tier, newer, bigger context window.
Grok 3 Mini Beta is 19x cheaper per token — worth considering if cost matters.
