Grok 4 vs Seed 1.6 Flash

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

Grok 4 is clearly ahead on the aggregate, 66 to 56. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Grok 4's sharpest advantage is in mathematics, where it averages 85.1 against 67.1. The single biggest benchmark swing on the page is SWE-bench Verified, 48 to 24.

Seed 1.6 Flash is the reasoning model in the pair, while Grok 4 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 128K for Grok 4.

Quick Verdict

Pick Grok 4 if you want the stronger benchmark profile. Seed 1.6 Flash only becomes the better choice if you need the larger 256K context window or you want the stronger reasoning-first profile.

Agentic

Grok 4

Grok 4

58.1

Seed 1.6 Flash

54.5

57
Terminal-Bench 2.0
52
63
BrowseComp
62
56
OSWorld-Verified
52

Coding

Grok 4

Grok 4

43.1

Seed 1.6 Flash

27.6

79
HumanEval
59
48
SWE-bench Verified
24
37
LiveCodeBench
25
48
SWE-bench Pro
31

Multimodal & Grounded

Grok 4

Grok 4

78.2

Seed 1.6 Flash

73.1

80
MMMU-Pro
74
76
OfficeQA Pro
72

Reasoning

Grok 4

Grok 4

77.4

Seed 1.6 Flash

66.8

83
SimpleQA
61
81
MuSR
59
83
BBH
75
72
LongBench v2
70
71
MRCRv2
74

Knowledge

Grok 4

Grok 4

63.8

Seed 1.6 Flash

47.3

87
MMLU
65
86
GPQA
64
84
SuperGPQA
62
82
OpenBookQA
60
77
MMLU-Pro
65
16
HLE
3
75
FrontierScience
57

Instruction Following

Grok 4

Grok 4

82

Seed 1.6 Flash

81

82
IFEval
81

Multilingual

Grok 4

Grok 4

80.8

Seed 1.6 Flash

72.8

84
MGSM
76
79
MMLU-ProX
71

Mathematics

Grok 4

Grok 4

85.1

Seed 1.6 Flash

67.1

87
AIME 2023
64
89
AIME 2024
66
88
AIME 2025
65
84
HMMT Feb 2023
60
86
HMMT Feb 2024
62
85
HMMT Feb 2025
61
87
BRUMO 2025
63
83
MATH-500
72

Frequently Asked Questions

Which is better, Grok 4 or Seed 1.6 Flash?

Grok 4 is ahead overall, 66 to 56. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 48 and 24.

Which is better for knowledge tasks, Grok 4 or Seed 1.6 Flash?

Grok 4 has the edge for knowledge tasks in this comparison, averaging 63.8 versus 47.3. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Grok 4 or Seed 1.6 Flash?

Grok 4 has the edge for coding in this comparison, averaging 43.1 versus 27.6. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for math, Grok 4 or Seed 1.6 Flash?

Grok 4 has the edge for math in this comparison, averaging 85.1 versus 67.1. Inside this category, HMMT Feb 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Grok 4 or Seed 1.6 Flash?

Grok 4 has the edge for reasoning in this comparison, averaging 77.4 versus 66.8. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Grok 4 or Seed 1.6 Flash?

Grok 4 has the edge for agentic tasks in this comparison, averaging 58.1 versus 54.5. 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, Grok 4 or Seed 1.6 Flash?

Grok 4 has the edge for multimodal and grounded tasks in this comparison, averaging 78.2 versus 73.1. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Grok 4 or Seed 1.6 Flash?

Grok 4 has the edge for instruction following in this comparison, averaging 82 versus 81. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Grok 4 or Seed 1.6 Flash?

Grok 4 has the edge for multilingual tasks in this comparison, averaging 80.8 versus 72.8. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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