Grok 3 vs GPT OSS 120B

Compare Grok 3 by xAI against GPT OSS 120B by OpenAI, in 1 community votes, grok 3 and gpt oss 120b are closely matched, context windows of 128K vs 131K, tested across 28 shared challenges. Updated March 2026.

Which is better, Grok 3 or GPT OSS 120B?

Grok 3 and GPT OSS 120B are closely matched based on 1 community votes. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.

Key Differences Between Grok 3 and GPT OSS 120B

Grok 3 is made by xai while GPT OSS 120B is from openai. Grok 3 has a 128K token context window compared to GPT OSS 120B's 131K. In community voting, In 1 community votes, Grok 3 and GPT OSS 120B are closely matched.

In 1 community votes, Grok 3 and GPT OSS 120B are closely matched. Based on blind community voting from the Rival open dataset of 1+ human preference judgments for this pair.

Our Verdict
GPT OSS 120B
GPT OSS 120BWinner
Grok 3
Grok 3Runner-up

Votes are tied. GPT OSS 120B is newer and likely incorporates more recent improvements.

Too close to call
FAQ

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