Llama 3.1 70B (Instruct) vs Llama 4 Scout

Compare Llama 3.1 70B (Instruct) and Llama 4 Scout, both from Meta AI, context windows of 128K vs 10.0M, tested across 26 shared challenges. Updated April 2026.

Which is better, Llama 3.1 70B (Instruct) or Llama 4 Scout?

Llama 3.1 70B (Instruct) and Llama 4 Scout are both competitive models. Llama 3.1 70B (Instruct) costs $0.59/M input tokens vs $0.25/M for Llama 4 Scout. Context windows: 128K vs 10000K tokens. Compare their real outputs side by side below.

Key Differences Between Llama 3.1 70B (Instruct) and Llama 4 Scout

Llama 3.1 70B (Instruct) is made by meta while Llama 4 Scout is from meta. Llama 3.1 70B (Instruct) has a 128K token context window compared to Llama 4 Scout's 10000K. On pricing, Llama 3.1 70B (Instruct) costs $0.59/M input tokens vs $0.25/M for Llama 4 Scout.

Our Verdict
Llama 3.1 70B (Instruct)
Llama 3.1 70B (Instruct)
Llama 4 Scout
Llama 4 Scout

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%

Llama 4 Scout uses 30.0x more headings

Llama 3.1 70B (Instruct)
Llama 4 Scout
51%Vocabulary43%
18wSentence Length42w
0.46Hedging0.81
3.4Bold4.1
5.6Lists7.3
0.00Emoji0.00
0.00Headings0.30
0.06Transitions0.04
Based on 15 + 10 text responses
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Llama 3.1 70B (Instruct)Llama 4 Scout

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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