GPT OSS 120B vs Grok 3 Beta
Compare GPT OSS 120B by OpenAI against Grok 3 Beta by xAI, context windows of 131K vs 131K, tested across 54 shared challenges.
Our Verdict
GPT OSS 120B
Grok 3 Beta
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
GPT OSS 120B is 5.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT OSS 120B
Input
$0.18
11× cheaper
Output
$0.80
5.0× cheaper
Grok 3 Beta
Input
$2.00
Output
$4.00
GPT OSS 120B is cheaper on both — 11× input, 5.0× output
Writing DNA
Style Comparison
Similarity
50%
GPT OSS 120B uses 15.4x more emoji
GPT OSS 120B
Grok 3 Beta
52%Vocabulary48%
19wSentence Length19w
0.28Hedging0.67
7.4Bold3.1
1.8Lists5.5
0.15Emoji0.00
0.73Headings0.52
0.17Transitions0.28
Based on 21 + 23 text responses
Research
What we learned reading every model
FAQ
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