Grok 3 vs Llama 3.1 70B (Instruct)

Compare Grok 3 by xAI against Llama 3.1 70B (Instruct) by Meta AI, context windows of 128K vs 128K, tested across 26 shared challenges. Updated April 2026.

Which is better, Grok 3 or Llama 3.1 70B (Instruct)?

Grok 3 and Llama 3.1 70B (Instruct) are both competitive models. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between Grok 3 and Llama 3.1 70B (Instruct)

Grok 3 is made by xai while Llama 3.1 70B (Instruct) is from meta. Grok 3 has a 128K token context window compared to Llama 3.1 70B (Instruct)'s 128K.

Our Verdict
Grok 3
Grok 3
Llama 3.1 70B (Instruct)
Llama 3.1 70B (Instruct)Runner-up

No community votes yet. On paper, Grok 3 has the edge — bigger model tier, newer.

Too close to call
Writing DNA

Style Comparison

Similarity
99%

Grok 3 uses 3.9x more emoji

Grok 3
Llama 3.1 70B (Instruct)
49%Vocabulary51%
18wSentence Length18w
0.94Hedging0.46
2.5Bold3.4
3.0Lists5.6
0.04Emoji0.00
0.65Headings0.00
0.08Transitions0.06
Based on 17 + 15 text responses
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Grok 3Llama 3.1 70B (Instruct)
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