Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
DeepSeek V3 and GPT-OSS 120B finish on the same overall score, so this is less about a single winner and more about where the edge shows up. The headline says tie; the benchmark table is where the real choice happens.
Treat this as a split decision. DeepSeek V3 makes more sense if mathematics is the priority; GPT-OSS 120B is the better fit if reasoning is the priority.
Benchmark data for this category is coming soon.
DeepSeek V3
42
GPT-OSS 120B
43
Benchmark data for this category is coming soon.
DeepSeek V3
24.9
GPT-OSS 120B
47.9
DeepSeek V3
69.6
GPT-OSS 120B
49
Benchmark data for this category is coming soon.
Benchmark data for this category is coming soon.
DeepSeek V3
90.2
GPT-OSS 120B
50
DeepSeek V3 and GPT-OSS 120B are tied on overall score, so the right pick depends on which category matters most for your use case.
DeepSeek V3 has the edge for knowledge tasks in this comparison, averaging 69.6 versus 49. Inside this category, MMLU is the benchmark that creates the most daylight between them.
GPT-OSS 120B has the edge for coding in this comparison, averaging 43 versus 42. DeepSeek V3 stays close enough that the answer can still flip depending on your workload.
DeepSeek V3 has the edge for math in this comparison, averaging 90.2 versus 50. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
GPT-OSS 120B has the edge for reasoning in this comparison, averaging 47.9 versus 24.9. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
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