Llama 3.1 70B (Instruct) vs Claude Sonnet 4

Compare Llama 3.1 70B (Instruct) by Meta AI against Claude Sonnet 4 by Anthropic, context windows of 128K vs 200K, tested across 19 shared challenges. Updated April 2026.

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

Llama 3.1 70B (Instruct) and Claude Sonnet 4 are both competitive models. Llama 3.1 70B (Instruct) costs $0.59/M input tokens vs $3/M for Claude Sonnet 4. Context windows: 128K vs 200K tokens. Compare their real outputs side by side below.

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

Llama 3.1 70B (Instruct) is made by meta while Claude Sonnet 4 is from anthropic. Llama 3.1 70B (Instruct) has a 128K token context window compared to Claude Sonnet 4's 200K. On pricing, Llama 3.1 70B (Instruct) costs $0.59/M input tokens vs $3/M for Claude Sonnet 4.

Our Verdict
Claude Sonnet 4
Claude Sonnet 4
Llama 3.1 70B (Instruct)
Llama 3.1 70B (Instruct)Runner-up

No community votes yet. On paper, Claude Sonnet 4 has the edge — newer, bigger context window.

Llama 3.1 70B (Instruct) is 19x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
81%

Claude Sonnet 4 uses 87.9x more emoji

Llama 3.1 70B (Instruct)
Claude Sonnet 4
51%Vocabulary62%
18wSentence Length111w
0.46Hedging0.40
3.4Bold5.0
5.6Lists9.3
0.00Emoji0.88
0.00Headings2.16
0.06Transitions0.33
Based on 15 + 17 text responses
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Llama 3.1 70B (Instruct)Claude Sonnet 4

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