Llama 3.1 405B vs Qwen3 Coder

Compare Llama 3.1 405B by Meta AI against Qwen3 Coder by Qwen, tested across 4 shared challenges. Updated April 2026.

Which is better, Llama 3.1 405B or Qwen3 Coder?

Llama 3.1 405B and Qwen3 Coder are both competitive models. Llama 3.1 405B costs $2.7/M input tokens vs $0.22/M for Qwen3 Coder. Compare their real outputs side by side below.

Key Differences Between Llama 3.1 405B and Qwen3 Coder

Llama 3.1 405B is made by meta while Qwen3 Coder is from qwen. On pricing, Llama 3.1 405B costs $2.7/M input tokens vs $0.22/M for Qwen3 Coder.

Our Verdict
Llama 3.1 405B
Llama 3.1 405B
Qwen3 Coder
Qwen3 Coder

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

Qwen3 Coder is 3.3x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
40%

Qwen3 Coder uses 473.7x more bold

Llama 3.1 405B
Qwen3 Coder
56%Vocabulary61%
15wSentence Length72w
0.41Hedging0.61
0.0Bold4.7
1.9Lists5.6
0.03Emoji0.12
0.00Headings1.43
0.16Transitions0.20
Based on 5 + 22 text responses
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Llama 3.1 405BQwen3 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
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