Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Seed-2.0-Mini is clearly ahead on the aggregate, 53 to 35. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Seed-2.0-Mini's sharpest advantage is in multimodal & grounded, where it averages 73.1 against 36. The single biggest benchmark swing on the page is MMMU-Pro, 74 to 31.
Seed-2.0-Mini gives you the larger context window at 256K, compared with 128K for GPT-OSS 20B.
Pick Seed-2.0-Mini if you want the stronger benchmark profile. GPT-OSS 20B only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Seed-2.0-Mini
46.2
GPT-OSS 20B
35.4
Seed-2.0-Mini
24.7
GPT-OSS 20B
14.5
Seed-2.0-Mini
73.1
GPT-OSS 20B
36
Seed-2.0-Mini
64.8
GPT-OSS 20B
40.4
Seed-2.0-Mini
44.6
GPT-OSS 20B
29
Seed-2.0-Mini
80
GPT-OSS 20B
67
Seed-2.0-Mini
71.8
GPT-OSS 20B
59.7
Seed-2.0-Mini
65.1
GPT-OSS 20B
43.1
Seed-2.0-Mini is ahead overall, 53 to 35. The biggest single separator in this matchup is MMMU-Pro, where the scores are 74 and 31.
Seed-2.0-Mini has the edge for knowledge tasks in this comparison, averaging 44.6 versus 29. Inside this category, MMLU is the benchmark that creates the most daylight between them.
Seed-2.0-Mini has the edge for coding in this comparison, averaging 24.7 versus 14.5. Inside this category, HumanEval is the benchmark that creates the most daylight between them.
Seed-2.0-Mini has the edge for math in this comparison, averaging 65.1 versus 43.1. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
Seed-2.0-Mini has the edge for reasoning in this comparison, averaging 64.8 versus 40.4. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
Seed-2.0-Mini has the edge for agentic tasks in this comparison, averaging 46.2 versus 35.4. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.
Seed-2.0-Mini has the edge for multimodal and grounded tasks in this comparison, averaging 73.1 versus 36. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Seed-2.0-Mini has the edge for instruction following in this comparison, averaging 80 versus 67. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Seed-2.0-Mini has the edge for multilingual tasks in this comparison, averaging 71.8 versus 59.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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