GPT-4o mini vs GPT OSS 120B
Compare GPT-4o mini and GPT OSS 120B, both from OpenAI, in 7 community votes, gpt oss 120b wins 100% of head-to-head duels, context windows of 128K vs 131K, tested across 54 shared challenges. Updated April 2026.
Which is better, GPT-4o mini or GPT OSS 120B?
GPT OSS 120B is the better choice overall, winning 100% of 7 blind community votes on Rival. GPT-4o mini costs $0.15/M input tokens vs $0.18/M for GPT OSS 120B. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o mini and GPT OSS 120B
GPT-4o mini is made by openai while GPT OSS 120B is from openai. GPT-4o mini has a 128K token context window compared to GPT OSS 120B's 131K. On pricing, GPT-4o mini costs $0.15/M input tokens vs $0.18/M for GPT OSS 120B. In community voting, In 7 community votes, GPT OSS 120B wins 100% of head-to-head duels.
In 7 community votes, GPT OSS 120B wins 100% of head-to-head duels. GPT OSS 120B leads in Reasoning. Based on blind community voting from the Rival open dataset of 7+ human preference judgments for this pair.
Pick GPT OSS 120B. In 7 blind votes, GPT OSS 120B wins 100% of the time. That's not luck.
GPT OSS 120B particularly excels in Reasoning.
Style Comparison
GPT OSS 120B uses 15.4x more emoji
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279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
