Llama 3.1 70B (Instruct) vs Claude Opus 4

Compare Llama 3.1 70B (Instruct) by Meta AI against Claude Opus 4 by Anthropic, in 1 community votes, llama 3.1 70b (instruct) wins 100% of head-to-head duels, context windows of 128K vs 200K, tested across 20 shared challenges. Updated April 2026.

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

Llama 3.1 70B (Instruct) is the better choice overall, winning 100% of 1 blind community votes on Rival. Llama 3.1 70B (Instruct) costs $0.59/M input tokens vs $15/M for Claude Opus 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 Opus 4

Llama 3.1 70B (Instruct) is made by meta while Claude Opus 4 is from anthropic. Llama 3.1 70B (Instruct) has a 128K token context window compared to Claude Opus 4's 200K. On pricing, Llama 3.1 70B (Instruct) costs $0.59/M input tokens vs $15/M for Claude Opus 4. In community voting, In 1 community votes, Llama 3.1 70B (Instruct) wins 100% of head-to-head duels.

In 1 community votes, Llama 3.1 70B (Instruct) wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 1+ human preference judgments for this pair.

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

Pick Llama 3.1 70B (Instruct). In 1 blind votes, Llama 3.1 70B (Instruct) wins 100% of the time. That's not luck.

Llama 3.1 70B (Instruct) is 95x cheaper per token — worth considering if cost matters.

Clear winner
Writing DNA

Style Comparison

Similarity
81%

Claude Opus 4 uses 11.2x more emoji

Llama 3.1 70B (Instruct)
Claude Opus 4
51%Vocabulary64%
18wSentence Length62w
0.46Hedging0.52
3.4Bold4.4
5.6Lists9.1
0.00Emoji0.11
0.00Headings1.87
0.06Transitions0.27
Based on 15 + 16 text responses
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Llama 3.1 70B (Instruct)Claude Opus 4

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