Grok 4.1 Fast vs Qwen3 Coder

Compare Grok 4.1 Fast by xAI against Qwen3 Coder by Qwen, tested across 37 shared challenges. Updated April 2026.

Which is better, Grok 4.1 Fast or Qwen3 Coder?

Grok 4.1 Fast and Qwen3 Coder are both competitive models. Compare their real outputs side by side below.

Key Differences Between Grok 4.1 Fast and Qwen3 Coder

Grok 4.1 Fast is made by xai while Qwen3 Coder is from qwen.

Our Verdict
Grok 4.1 Fast
Grok 4.1 Fast
Qwen3 Coder
Qwen3 CoderRunner-up

No community votes yet. On paper, Grok 4.1 Fast has the edge — newer, major provider backing.

Too close to call
Writing DNA

Style Comparison

Similarity
97%

Qwen3 Coder uses 11.6x more emoji

Grok 4.1 Fast
Qwen3 Coder
67%Vocabulary61%
15wSentence Length72w
0.17Hedging0.61
4.7Bold4.7
3.7Lists5.6
0.00Emoji0.12
0.99Headings1.43
0.14Transitions0.20
Based on 24 + 22 text responses
vs

Ask them anything yourself

Grok 4.1 FastQwen3 Coder

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
Free preview13 of 58 slides
FAQ

Common questions