Seed-2.0-Lite vs Z-1

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

Seed-2.0-Lite is clearly ahead on the aggregate, 63 to 47. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Seed-2.0-Lite's sharpest advantage is in multimodal & grounded, where it averages 79.6 against 50.5. The single biggest benchmark swing on the page is MMMU-Pro, 80 to 46.

Seed-2.0-Lite gives you the larger context window at 256K, compared with 128K for Z-1.

Quick Verdict

Pick Seed-2.0-Lite if you want the stronger benchmark profile. Z-1 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

Seed-2.0-Lite

Seed-2.0-Lite

55.1

Z-1

42.2

52
Terminal-Bench 2.0
39
63
BrowseComp
49
53
OSWorld-Verified
41

Coding

Seed-2.0-Lite

Seed-2.0-Lite

41.4

Z-1

26.7

63
HumanEval
44
45
SWE-bench Verified
33
37
LiveCodeBench
22
45
SWE-bench Pro
30

Multimodal & Grounded

Seed-2.0-Lite

Seed-2.0-Lite

79.6

Z-1

50.5

80
MMMU-Pro
46
79
OfficeQA Pro
56

Reasoning

Seed-2.0-Lite

Seed-2.0-Lite

73

Z-1

54.8

68
SimpleQA
50
66
MuSR
48
85
BBH
74
76
LongBench v2
56
77
MRCRv2
57

Knowledge

Seed-2.0-Lite

Seed-2.0-Lite

53.9

Z-1

42.7

71
MMLU
52
70
GPQA
51
68
SuperGPQA
49
66
OpenBookQA
47
73
MMLU-Pro
64
7
HLE
6
66
FrontierScience
51

Instruction Following

Seed-2.0-Lite

Seed-2.0-Lite

89

Z-1

80

89
IFEval
80

Multilingual

Seed-2.0-Lite

Seed-2.0-Lite

82.5

Z-1

72.7

87
MGSM
74
80
MMLU-ProX
72

Mathematics

Seed-2.0-Lite

Seed-2.0-Lite

75

Z-1

60.9

71
AIME 2023
52
73
AIME 2024
54
72
AIME 2025
53
67
HMMT Feb 2023
48
69
HMMT Feb 2024
50
68
HMMT Feb 2025
49
70
BRUMO 2025
51
81
MATH-500
73

Frequently Asked Questions

Which is better, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite is ahead overall, 63 to 47. The biggest single separator in this matchup is MMMU-Pro, where the scores are 80 and 46.

Which is better for knowledge tasks, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite has the edge for knowledge tasks in this comparison, averaging 53.9 versus 42.7. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite has the edge for coding in this comparison, averaging 41.4 versus 26.7. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite has the edge for math in this comparison, averaging 75 versus 60.9. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite has the edge for reasoning in this comparison, averaging 73 versus 54.8. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite has the edge for agentic tasks in this comparison, averaging 55.1 versus 42.2. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 50.5. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite has the edge for instruction following in this comparison, averaging 89 versus 80. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Seed-2.0-Lite or Z-1?

Seed-2.0-Lite has the edge for multilingual tasks in this comparison, averaging 82.5 versus 72.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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