GPT-5.2 vs GPT OSS 120B
Compare GPT-5.2 and GPT OSS 120B, both from OpenAI, context windows of 400K vs 131K, tested across 53 shared challenges.
Our Verdict
GPT-5.2
GPT OSS 120BRunner-up
No community votes yet. On paper, GPT-5.2 has the edge — newer, bigger context window.
GPT OSS 120B is 18x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.2
Input
$1.75
Output
$14.00
GPT OSS 120B
Input
$0.18
9.7× cheaper
Output
$0.80
18× cheaper
GPT OSS 120B is cheaper on both — 9.7× input, 18× output
Writing DNA
Style Comparison
Similarity
59%
GPT OSS 120B uses 2.6x more emoji
GPT-5.2
GPT OSS 120B
64%Vocabulary52%
16wSentence Length19w
0.34Hedging0.28
9.4Bold7.4
3.9Lists1.8
0.06Emoji0.15
0.89Headings0.73
0.31Transitions0.17
Based on 15 + 21 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
