Seed-2.0-Lite vs Seed 1.6 Flash

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 56. 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 coding, where it averages 41.4 against 27.6. The single biggest benchmark swing on the page is SWE-bench Verified, 45 to 24.

Seed-2.0-Lite is also the more expensive model on tokens at $0.25 input / $2.00 output per 1M tokens, versus $0.08 input / $0.30 output per 1M tokens for Seed 1.6 Flash. That is roughly 6.7x on output cost alone. Seed 1.6 Flash 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-2.0-Lite if you want the stronger benchmark profile. Seed 1.6 Flash only becomes the better choice if you want the cheaper token bill or you want the stronger reasoning-first profile.

Agentic

Seed-2.0-Lite

Seed-2.0-Lite

55.1

Seed 1.6 Flash

54.5

52
Terminal-Bench 2.0
52
63
BrowseComp
62
53
OSWorld-Verified
52

Coding

Seed-2.0-Lite

Seed-2.0-Lite

41.4

Seed 1.6 Flash

27.6

63
HumanEval
59
45
SWE-bench Verified
24
37
LiveCodeBench
25
45
SWE-bench Pro
31

Multimodal & Grounded

Seed-2.0-Lite

Seed-2.0-Lite

79.6

Seed 1.6 Flash

73.1

80
MMMU-Pro
74
79
OfficeQA Pro
72

Reasoning

Seed-2.0-Lite

Seed-2.0-Lite

73

Seed 1.6 Flash

66.8

68
SimpleQA
61
66
MuSR
59
85
BBH
75
76
LongBench v2
70
77
MRCRv2
74

Knowledge

Seed-2.0-Lite

Seed-2.0-Lite

53.9

Seed 1.6 Flash

47.3

71
MMLU
65
70
GPQA
64
68
SuperGPQA
62
66
OpenBookQA
60
73
MMLU-Pro
65
7
HLE
3
66
FrontierScience
57

Instruction Following

Seed-2.0-Lite

Seed-2.0-Lite

89

Seed 1.6 Flash

81

89
IFEval
81

Multilingual

Seed-2.0-Lite

Seed-2.0-Lite

82.5

Seed 1.6 Flash

72.8

87
MGSM
76
80
MMLU-ProX
71

Mathematics

Seed-2.0-Lite

Seed-2.0-Lite

75

Seed 1.6 Flash

67.1

71
AIME 2023
64
73
AIME 2024
66
72
AIME 2025
65
67
HMMT Feb 2023
60
69
HMMT Feb 2024
62
68
HMMT Feb 2025
61
70
BRUMO 2025
63
81
MATH-500
72

Frequently Asked Questions

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

Seed-2.0-Lite is ahead overall, 63 to 56. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 45 and 24.

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

Seed-2.0-Lite has the edge for knowledge tasks in this comparison, averaging 53.9 versus 47.3. Inside this category, FrontierScience is the benchmark that creates the most daylight between them.

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

Seed-2.0-Lite has the edge for coding in this comparison, averaging 41.4 versus 27.6. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

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

Seed-2.0-Lite has the edge for math in this comparison, averaging 75 versus 67.1. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.

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

Seed-2.0-Lite has the edge for reasoning in this comparison, averaging 73 versus 66.8. Inside this category, BBH is the benchmark that creates the most daylight between them.

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

Seed-2.0-Lite has the edge for agentic tasks in this comparison, averaging 55.1 versus 54.5. 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 Seed 1.6 Flash?

Seed-2.0-Lite has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 73.1. Inside this category, OfficeQA Pro is the benchmark that creates the most daylight between them.

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

Seed-2.0-Lite has the edge for instruction following in this comparison, averaging 89 versus 81. 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 Seed 1.6 Flash?

Seed-2.0-Lite has the edge for multilingual tasks in this comparison, averaging 82.5 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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