Llama 3.1 70B (Instruct) vs GPT OSS 120B

Compare Llama 3.1 70B (Instruct) by Meta AI against GPT OSS 120B by OpenAI, context windows of 128K vs 131K, tested across 26 shared challenges. Updated April 2026.

Which is better, Llama 3.1 70B (Instruct) or GPT OSS 120B?

Llama 3.1 70B (Instruct) and GPT OSS 120B are both competitive models. Llama 3.1 70B (Instruct) costs $0.59/M input tokens vs $0.18/M for GPT OSS 120B. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.

Key Differences Between Llama 3.1 70B (Instruct) and GPT OSS 120B

Llama 3.1 70B (Instruct) is made by meta while GPT OSS 120B is from openai. Llama 3.1 70B (Instruct) has a 128K token context window compared to GPT OSS 120B's 131K. On pricing, Llama 3.1 70B (Instruct) costs $0.59/M input tokens vs $0.18/M for GPT OSS 120B.

Our Verdict
GPT OSS 120B
GPT OSS 120B
Llama 3.1 70B (Instruct)
Llama 3.1 70B (Instruct)Runner-up

No community votes yet. On paper, GPT OSS 120B has the edge — bigger model tier, newer.

Too close to call
Writing DNA

Style Comparison

Similarity
92%

GPT OSS 120B uses 15.4x more emoji

Llama 3.1 70B (Instruct)
GPT OSS 120B
51%Vocabulary52%
18wSentence Length19w
0.46Hedging0.28
3.4Bold7.4
5.6Lists1.8
0.00Emoji0.15
0.00Headings0.73
0.06Transitions0.17
Based on 15 + 21 text responses
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