GPT-5
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GPT-5 vs GPT OSS 120B
Compare GPT-5 and GPT OSS 120B, both from OpenAI, in 21 community votes, gpt-5 wins 87% of head-to-head duels, context windows of 400K vs 131K, tested across 47 shared challenges. Updated April 2026.
Which is better, GPT-5 or GPT OSS 120B?
GPT-5 is the better choice overall, winning 87% of 21 blind community votes on Rival. GPT-5 costs $1.25/M input tokens vs $0.18/M for GPT OSS 120B. Context windows: 400K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5 and GPT OSS 120B
GPT-5 is made by openai while GPT OSS 120B is from openai. GPT-5 has a 400K token context window compared to GPT OSS 120B's 131K. On pricing, GPT-5 costs $1.25/M input tokens vs $0.18/M for GPT OSS 120B. In community voting, In 21 community votes, GPT-5 wins 87% of head-to-head duels.
In 21 community votes, GPT-5 wins 87% of head-to-head duels. GPT-5 leads in Web Design, Image Generation. Based on blind community voting from the Rival open dataset of 21+ human preference judgments for this pair.
Web Design: GPT-5 wins 78% of votes
Image Generation: GPT-5 wins 100% of votes
Our Verdict
GPT-5Winner
GPT OSS 120BRunner-up
Pick GPT-5. In 21 blind votes, GPT-5 wins 87% of the time. That's not luck.
GPT-5 particularly excels in Image Generation, Web Design. GPT OSS 120B is 13x cheaper per token — worth considering if cost matters.
Clear winner
Writing DNA
Style Comparison
Similarity
98%
GPT OSS 120B uses 15.4x more emoji
GPT-5
GPT OSS 120B
65%Vocabulary52%
13wSentence Length19w
0.20Hedging0.28
0.2Bold7.4
4.6Lists1.8
0.00Emoji0.15
0.16Headings0.73
0.03Transitions0.17
Based on 16 + 21 text responses
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