xAI: Grok 4 vs o3 Mini
Compare xAI: Grok 4 by xAI against o3 Mini by OpenAI, context windows of 256K vs 64K, tested across 53 shared challenges. Updated June 2026.
Which is better, xAI: Grok 4 or o3 Mini?
xAI: Grok 4 and o3 Mini are both competitive models. xAI: Grok 4 costs $3/M input tokens vs $1.1/M for o3 Mini. Context windows: 256K vs 64K tokens. Compare their real outputs side by side below.
Key Differences Between xAI: Grok 4 and o3 Mini
xAI: Grok 4 is made by xai while o3 Mini is from openai. xAI: Grok 4 has a 256K token context window compared to o3 Mini's 64K. On pricing, xAI: Grok 4 costs $3/M input tokens vs $1.1/M for o3 Mini.
Per 1M tokens
o3 Mini is cheaper on both — 2.7× input, 3.4× output
No community votes yet. On paper, xAI: Grok 4 has the edge — bigger model tier, newer, bigger context window.
o3 Mini is 3.4x cheaper per token — worth considering if cost matters.
Style Comparison
xAI: Grok 4 uses 7.0x more emoji
