xAI: Grok 4 Fast (free) vs MiniMax M1

Compare xAI: Grok 4 Fast (free) by xAI against MiniMax M1 by MiniMax, context windows of 2.0M vs 1.0M, tested across 13 shared challenges. Updated April 2026.

Which is better, xAI: Grok 4 Fast (free) or MiniMax M1?

xAI: Grok 4 Fast (free) and MiniMax M1 are both competitive models. xAI: Grok 4 Fast (free) costs $0/M input tokens vs $0.3/M for MiniMax M1. Context windows: 2000K vs 1000K tokens. Compare their real outputs side by side below.

Key Differences Between xAI: Grok 4 Fast (free) and MiniMax M1

xAI: Grok 4 Fast (free) is made by xai while MiniMax M1 is from minimax. xAI: Grok 4 Fast (free) has a 2000K token context window compared to MiniMax M1's 1000K. On pricing, xAI: Grok 4 Fast (free) costs $0/M input tokens vs $0.3/M for MiniMax M1.

Our Verdict
xAI: Grok 4 Fast (free)
xAI: Grok 4 Fast (free)
MiniMax M1
MiniMax M1

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call
Writing DNA

Style Comparison

Similarity
81%

MiniMax M1 uses 10.4x more emoji

xAI: Grok 4 Fast (free)
MiniMax M1
65%Vocabulary53%
13wSentence Length17w
0.56Hedging0.51
1.4Bold7.4
2.5Lists6.2
0.00Emoji0.10
1.58Headings0.86
0.28Transitions0.03
Based on 14 + 14 text responses
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xAI: Grok 4 Fast (free)MiniMax M1

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
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