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 50 shared challenges. Updated May 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.
API pricing
Per 1M tokens
Grok 3
Input
—
Output
—
Llama 3.1 70B (Instruct)
Input
$0.59
Output
$0.79
Our Verdict
Grok 3
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
77%
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
FAQ
