Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Seed 1.6 finishes one point ahead overall, 65 to 64. That is enough to call, but not enough to treat as a blowout. This matchup comes down to a few meaningful edges rather than one model dominating the board.
Seed 1.6's sharpest advantage is in multimodal & grounded, where it averages 79.6 against 66.9. The single biggest benchmark swing on the page is MMMU-Pro, 80 to 61. Nemotron 3 Ultra 500B does hit back in reasoning, 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.
Pick Seed 1.6 if you want the stronger benchmark profile. Nemotron 3 Ultra 500B only becomes the better choice if reasoning is the priority or you need the larger 10M context window.
Seed 1.6
62.3
Nemotron 3 Ultra 500B
62.8
Seed 1.6
42.4
Nemotron 3 Ultra 500B
43.8
Seed 1.6
79.6
Nemotron 3 Ultra 500B
66.9
Seed 1.6
74.5
Nemotron 3 Ultra 500B
77.2
Seed 1.6
56.4
Nemotron 3 Ultra 500B
57
Seed 1.6
87
Nemotron 3 Ultra 500B
84
Seed 1.6
83.4
Nemotron 3 Ultra 500B
79.7
Seed 1.6
75.9
Nemotron 3 Ultra 500B
78
Seed 1.6 is ahead overall, 65 to 64. The biggest single separator in this matchup is MMMU-Pro, where the scores are 80 and 61.
Nemotron 3 Ultra 500B has the edge for knowledge tasks in this comparison, averaging 57 versus 56.4. 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 42.4. 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 75.9. Inside this category, AIME 2023 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 74.5. Inside this category, MRCRv2 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 62.3. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 66.9. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for instruction following in this comparison, averaging 87 versus 84. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for multilingual tasks in this comparison, averaging 83.4 versus 79.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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