Seed 1.6 Flash vs Nemotron-4 15B

Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.

Seed 1.6 Flash is clearly ahead on the aggregate, 56 to 47. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Seed 1.6 Flash's sharpest advantage is in multimodal & grounded, where it averages 73.1 against 49.6. The single biggest benchmark swing on the page is MMMU-Pro, 74 to 46.

Seed 1.6 Flash is the reasoning model in the pair, while Nemotron-4 15B is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Seed 1.6 Flash gives you the larger context window at 256K, compared with 32K for Nemotron-4 15B.

Quick Verdict

Pick Seed 1.6 Flash if you want the stronger benchmark profile. Nemotron-4 15B only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.

Agentic

Seed 1.6 Flash

Seed 1.6 Flash

54.5

Nemotron-4 15B

41.3

52
Terminal-Bench 2.0
37
62
BrowseComp
47
52
OSWorld-Verified
42

Coding

Seed 1.6 Flash

Seed 1.6 Flash

27.6

Nemotron-4 15B

26.5

59
HumanEval
46
24
SWE-bench Verified
31
25
LiveCodeBench
22
31
SWE-bench Pro
30

Multimodal & Grounded

Seed 1.6 Flash

Seed 1.6 Flash

73.1

Nemotron-4 15B

49.6

74
MMMU-Pro
46
72
OfficeQA Pro
54

Reasoning

Seed 1.6 Flash

Seed 1.6 Flash

66.8

Nemotron-4 15B

53.4

61
SimpleQA
52
59
MuSR
50
75
BBH
73
70
LongBench v2
52
74
MRCRv2
51

Knowledge

Seed 1.6 Flash

Seed 1.6 Flash

47.3

Nemotron-4 15B

42.6

65
MMLU
54
64
GPQA
53
62
SuperGPQA
51
60
OpenBookQA
49
65
MMLU-Pro
63
3
HLE
5
57
FrontierScience
50

Instruction Following

Seed 1.6 Flash

Seed 1.6 Flash

81

Nemotron-4 15B

79

81
IFEval
79

Multilingual

Seed 1.6 Flash

Seed 1.6 Flash

72.8

Nemotron-4 15B

72.4

76
MGSM
75
71
MMLU-ProX
71

Mathematics

Seed 1.6 Flash

Seed 1.6 Flash

67.1

Nemotron-4 15B

61.1

64
AIME 2023
54
66
AIME 2024
56
65
AIME 2025
55
60
HMMT Feb 2023
50
62
HMMT Feb 2024
52
61
HMMT Feb 2025
51
63
BRUMO 2025
53
72
MATH-500
71

Frequently Asked Questions

Which is better, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash is ahead overall, 56 to 47. The biggest single separator in this matchup is MMMU-Pro, where the scores are 74 and 46.

Which is better for knowledge tasks, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash has the edge for knowledge tasks in this comparison, averaging 47.3 versus 42.6. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash has the edge for coding in this comparison, averaging 27.6 versus 26.5. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash has the edge for math in this comparison, averaging 67.1 versus 61.1. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash has the edge for reasoning in this comparison, averaging 66.8 versus 53.4. Inside this category, MRCRv2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash has the edge for agentic tasks in this comparison, averaging 54.5 versus 41.3. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash has the edge for multimodal and grounded tasks in this comparison, averaging 73.1 versus 49.6. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash has the edge for instruction following in this comparison, averaging 81 versus 79. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Seed 1.6 Flash or Nemotron-4 15B?

Seed 1.6 Flash has the edge for multilingual tasks in this comparison, averaging 72.8 versus 72.4. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

Weekly LLM Benchmark Digest

Get notified when new models drop, benchmark scores change, or the leaderboard shifts. One email per week.

Free. No spam. Unsubscribe anytime. We only store derived location metadata for consent routing.