Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Nemotron 3 Ultra 500B is clearly ahead on the aggregate, 64 to 56. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Nemotron 3 Ultra 500B's sharpest advantage is in coding, where it averages 43.8 against 27.6. The single biggest benchmark swing on the page is SWE-bench Verified, 42 to 24. Seed 1.6 Flash does hit back in multimodal & grounded, so the answer changes if that is the part of the workload you care about most.
Nemotron 3 Ultra 500B gives you the larger context window at 10M, compared with 256K for Seed 1.6 Flash.
Pick Nemotron 3 Ultra 500B if you want the stronger benchmark profile. Seed 1.6 Flash only becomes the better choice if multimodal & grounded is the priority.
Nemotron 3 Ultra 500B
62.8
Seed 1.6 Flash
54.5
Nemotron 3 Ultra 500B
43.8
Seed 1.6 Flash
27.6
Nemotron 3 Ultra 500B
66.9
Seed 1.6 Flash
73.1
Nemotron 3 Ultra 500B
77.2
Seed 1.6 Flash
66.8
Nemotron 3 Ultra 500B
57
Seed 1.6 Flash
47.3
Nemotron 3 Ultra 500B
84
Seed 1.6 Flash
81
Nemotron 3 Ultra 500B
79.7
Seed 1.6 Flash
72.8
Nemotron 3 Ultra 500B
78
Seed 1.6 Flash
67.1
Nemotron 3 Ultra 500B is ahead overall, 64 to 56. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 42 and 24.
Nemotron 3 Ultra 500B has the edge for knowledge tasks in this comparison, averaging 57 versus 47.3. Inside this category, HLE is the benchmark that creates the most daylight between them.
Nemotron 3 Ultra 500B has the edge for coding in this comparison, averaging 43.8 versus 27.6. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Nemotron 3 Ultra 500B has the edge for math in this comparison, averaging 78 versus 67.1. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.
Nemotron 3 Ultra 500B has the edge for reasoning in this comparison, averaging 77.2 versus 66.8. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.
Nemotron 3 Ultra 500B has the edge for agentic tasks in this comparison, averaging 62.8 versus 54.5. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Seed 1.6 Flash has the edge for multimodal and grounded tasks in this comparison, averaging 73.1 versus 66.9. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Nemotron 3 Ultra 500B has the edge for instruction following in this comparison, averaging 84 versus 81. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Nemotron 3 Ultra 500B has the edge for multilingual tasks in this comparison, averaging 79.7 versus 72.8. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.
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