DeepSeekMath V2 vs Seed 1.6

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

DeepSeekMath V2 finishes one point ahead overall, 66 to 65. 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.

DeepSeekMath V2's sharpest advantage is in mathematics, where it averages 84 against 75.9. The single biggest benchmark swing on the page is MMMU-Pro, 64 to 80. Seed 1.6 does hit back in multimodal & grounded, so the answer changes if that is the part of the workload you care about most.

Seed 1.6 gives you the larger context window at 256K, compared with 128K for DeepSeekMath V2.

Quick Verdict

Pick DeepSeekMath V2 if you want the stronger benchmark profile. Seed 1.6 only becomes the better choice if multimodal & grounded is the priority or you need the larger 256K context window.

Agentic

DeepSeekMath V2

DeepSeekMath V2

63.9

Seed 1.6

62.3

65
Terminal-Bench 2.0
63
66
BrowseComp
67
61
OSWorld-Verified
58

Coding

DeepSeekMath V2

DeepSeekMath V2

47.3

Seed 1.6

42.4

72
HumanEval
64
45
SWE-bench Verified
46
44
LiveCodeBench
38
51
SWE-bench Pro
46

Multimodal & Grounded

Seed 1.6

DeepSeekMath V2

68.1

Seed 1.6

79.6

64
MMMU-Pro
80
73
OfficeQA Pro
79

Reasoning

DeepSeekMath V2

DeepSeekMath V2

75.9

Seed 1.6

74.5

77
SimpleQA
69
75
MuSR
69
86
BBH
86
75
LongBench v2
77
72
MRCRv2
78

Knowledge

DeepSeekMath V2

DeepSeekMath V2

61

Seed 1.6

56.4

80
MMLU
73
79
GPQA
72
77
SuperGPQA
70
75
OpenBookQA
68
74
MMLU-Pro
75
18
HLE
11
73
FrontierScience
68

Instruction Following

Seed 1.6

DeepSeekMath V2

83

Seed 1.6

87

83
IFEval
87

Multilingual

Seed 1.6

DeepSeekMath V2

82.5

Seed 1.6

83.4

87
MGSM
88
80
MMLU-ProX
81

Mathematics

DeepSeekMath V2

DeepSeekMath V2

84

Seed 1.6

75.9

80
AIME 2023
72
82
AIME 2024
74
81
AIME 2025
73
76
HMMT Feb 2023
68
78
HMMT Feb 2024
70
77
HMMT Feb 2025
69
79
BRUMO 2025
71
90
MATH-500
82

Frequently Asked Questions

Which is better, DeepSeekMath V2 or Seed 1.6?

DeepSeekMath V2 is ahead overall, 66 to 65. The biggest single separator in this matchup is MMMU-Pro, where the scores are 64 and 80.

Which is better for knowledge tasks, DeepSeekMath V2 or Seed 1.6?

DeepSeekMath V2 has the edge for knowledge tasks in this comparison, averaging 61 versus 56.4. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeekMath V2 or Seed 1.6?

DeepSeekMath V2 has the edge for coding in this comparison, averaging 47.3 versus 42.4. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, DeepSeekMath V2 or Seed 1.6?

DeepSeekMath V2 has the edge for math in this comparison, averaging 84 versus 75.9. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, DeepSeekMath V2 or Seed 1.6?

DeepSeekMath V2 has the edge for reasoning in this comparison, averaging 75.9 versus 74.5. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, DeepSeekMath V2 or Seed 1.6?

DeepSeekMath V2 has the edge for agentic tasks in this comparison, averaging 63.9 versus 62.3. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, DeepSeekMath V2 or Seed 1.6?

Seed 1.6 has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 68.1. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, DeepSeekMath V2 or Seed 1.6?

Seed 1.6 has the edge for instruction following in this comparison, averaging 87 versus 83. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, DeepSeekMath V2 or Seed 1.6?

Seed 1.6 has the edge for multilingual tasks in this comparison, averaging 83.4 versus 82.5. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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