Seed 1.6 vs Seed-2.0-Lite

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

Seed 1.6 has the cleaner overall profile here, landing at 65 versus 63. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

Seed 1.6's sharpest advantage is in agentic, where it averages 62.3 against 55.1. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 63 to 52. Seed-2.0-Lite does hit back in instruction following, so the answer changes if that is the part of the workload you care about most.

Seed 1.6 is the reasoning model in the pair, while Seed-2.0-Lite 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.

Quick Verdict

Pick Seed 1.6 if you want the stronger benchmark profile. Seed-2.0-Lite only becomes the better choice if instruction following is the priority or you would rather avoid the extra latency and token burn of a reasoning model.

Agentic

Seed 1.6

Seed 1.6

62.3

Seed-2.0-Lite

55.1

63
Terminal-Bench 2.0
52
67
BrowseComp
63
58
OSWorld-Verified
53

Coding

Seed 1.6

Seed 1.6

42.4

Seed-2.0-Lite

41.4

64
HumanEval
63
46
SWE-bench Verified
45
38
LiveCodeBench
37
46
SWE-bench Pro
45

Multimodal & Grounded

Tie

Seed 1.6

79.6

Seed-2.0-Lite

79.6

80
MMMU-Pro
80
79
OfficeQA Pro
79

Reasoning

Seed 1.6

Seed 1.6

74.5

Seed-2.0-Lite

73

69
SimpleQA
68
69
MuSR
66
86
BBH
85
77
LongBench v2
76
78
MRCRv2
77

Knowledge

Seed 1.6

Seed 1.6

56.4

Seed-2.0-Lite

53.9

73
MMLU
71
72
GPQA
70
70
SuperGPQA
68
68
OpenBookQA
66
75
MMLU-Pro
73
11
HLE
7
68
FrontierScience
66

Instruction Following

Seed-2.0-Lite

Seed 1.6

87

Seed-2.0-Lite

89

87
IFEval
89

Multilingual

Seed 1.6

Seed 1.6

83.4

Seed-2.0-Lite

82.5

88
MGSM
87
81
MMLU-ProX
80

Mathematics

Seed 1.6

Seed 1.6

75.9

Seed-2.0-Lite

75

72
AIME 2023
71
74
AIME 2024
73
73
AIME 2025
72
68
HMMT Feb 2023
67
70
HMMT Feb 2024
69
69
HMMT Feb 2025
68
71
BRUMO 2025
70
82
MATH-500
81

Frequently Asked Questions

Which is better, Seed 1.6 or Seed-2.0-Lite?

Seed 1.6 is ahead overall, 65 to 63. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 63 and 52.

Which is better for knowledge tasks, Seed 1.6 or Seed-2.0-Lite?

Seed 1.6 has the edge for knowledge tasks in this comparison, averaging 56.4 versus 53.9. Inside this category, HLE is the benchmark that creates the most daylight between them.

Which is better for coding, Seed 1.6 or Seed-2.0-Lite?

Seed 1.6 has the edge for coding in this comparison, averaging 42.4 versus 41.4. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Seed 1.6 or Seed-2.0-Lite?

Seed 1.6 has the edge for math in this comparison, averaging 75.9 versus 75. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Seed 1.6 or Seed-2.0-Lite?

Seed 1.6 has the edge for reasoning in this comparison, averaging 74.5 versus 73. Inside this category, MuSR is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Seed 1.6 or Seed-2.0-Lite?

Seed 1.6 has the edge for agentic tasks in this comparison, averaging 62.3 versus 55.1. 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 or Seed-2.0-Lite?

Seed 1.6 and Seed-2.0-Lite are effectively tied for multimodal and grounded tasks here, both landing at 79.6 on average.

Which is better for instruction following, Seed 1.6 or Seed-2.0-Lite?

Seed-2.0-Lite has the edge for instruction following in this comparison, averaging 89 versus 87. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Seed 1.6 or Seed-2.0-Lite?

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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