GPT-5 Pro
No content available for this output.
GPT-5 Pro vs GPT OSS 120B
Compare GPT-5 Pro and GPT OSS 120B, both from OpenAI, context windows of 400K vs 131K, tested across 37 shared challenges. Updated February 2026.
FAQ
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GPT-5 ProvsGPT OSS 120B
37 challenges
Why GPT-5 Pro?
3.1x more context400K
2 months newerOct 2025
Why GPT OSS 120B?
141.3x cheaper overall$0.18/M in · $0.80/M out
Favorites
GPT-5 ProGPT OSS 120B
12 / 37
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
GPT OSS 120B
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2 / 37
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
GPT-5 Pro
No content available for this output.
GPT OSS 120B
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3 / 37
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
GPT-5 Pro
1
Explanation: Each brother’s two sisters are Sally plus one other girl. So there are 2 sisters total, meaning Sally has 1 sister.
GPT OSS 120B
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4 / 37
Math Misconception Testreasoning
Tests an AI's understanding of number representation
GPT-5 Pro
No content available for this output.
GPT OSS 120B
No content available for this output.
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5 / 37
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
GPT-5 Pro
No content available for this output.
GPT OSS 120B
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6 / 37
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
GPT-5 Pro
No content available for this output.
GPT OSS 120B
No content available for this output.
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7 / 37
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
GPT-5 Pro
No content available for this output.
GPT OSS 120B
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8 / 37
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
GPT-5 Pro
No content available for this output.
GPT OSS 120B
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9 / 37
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
GPT-5 Pro
No content available for this output.
GPT OSS 120B
No content available for this output.
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10 / 37
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
GPT-5 Pro
No content available for this output.
GPT OSS 120B
No content available for this output.
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11 / 37
Mario Level UI Recreationweb design
Recreate an interactive, classic Mario level in a single HTML file.
GPT-5 Pro
No content available for this output.
GPT OSS 120B
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12 / 37
Framer-Style Animationweb design
Tests an AI's ability to create smooth web animations
GPT-5 Pro
No content available for this output.
GPT OSS 120B
No content available for this output.
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12 of 37