GPT OSS 120B
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GPT OSS 120B vs GPT-5 Mini
Compare GPT OSS 120B and GPT-5 Mini, both from OpenAI, in 102 community votes, gpt oss 120b wins 56% of head-to-head duels, tested across 46 shared challenges. Updated April 2026.
Which is better, GPT OSS 120B or GPT-5 Mini?
GPT OSS 120B is the better choice overall, winning 56% of 102 blind community votes on Rival. GPT OSS 120B costs $0.18/M input tokens vs $0.25/M for GPT-5 Mini. Compare their real outputs side by side below.
Key Differences Between GPT OSS 120B and GPT-5 Mini
GPT OSS 120B is made by openai while GPT-5 Mini is from openai. On pricing, GPT OSS 120B costs $0.18/M input tokens vs $0.25/M for GPT-5 Mini. In community voting, In 102 community votes, GPT OSS 120B wins 56% of head-to-head duels.
In 102 community votes, GPT OSS 120B wins 56% of head-to-head duels. GPT OSS 120B leads in Web Design, Reasoning, Analysis, while GPT-5 Mini leads in Image Generation. Based on blind community voting from the Rival open dataset of 102+ human preference judgments for this pair.
Web Design: GPT OSS 120B wins 81% of votes
Reasoning: GPT OSS 120B wins 63% of votes
Image Generation: GPT-5 Mini wins 100% of votes
Conversation: GPT OSS 120B and GPT-5 Mini are tied
Analysis: GPT OSS 120B wins 75% of votes
Our Verdict
GPT OSS 120BWinner
GPT-5 MiniRunner-up
GPT OSS 120B has the edge overall. In 102 blind votes, GPT OSS 120B wins 56% of the time.
Pick GPT OSS 120B for Web Design, Analysis, Reasoning. Pick GPT-5 Mini for Image Generation.
Slight edge
Writing DNA
Style Comparison
Similarity
98%
GPT OSS 120B uses 743.4x more bold
GPT OSS 120B
GPT-5 Mini
52%Vocabulary62%
19wSentence Length21w
0.28Hedging0.16
7.4Bold0.0
1.8Lists3.4
0.15Emoji0.00
0.73Headings0.00
0.17Transitions0.05
Based on 21 + 15 text responses
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