Claude 3.5 Sonnet vs Seed-2.0-Mini

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

Claude 3.5 Sonnet is clearly ahead on the aggregate, 60 to 53. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude 3.5 Sonnet's sharpest advantage is in coding, where it averages 37.8 against 24.7. The single biggest benchmark swing on the page is LiveCodeBench, 39 to 21.

Seed-2.0-Mini gives you the larger context window at 256K, compared with 200K for Claude 3.5 Sonnet.

Quick Verdict

Pick Claude 3.5 Sonnet if you want the stronger benchmark profile. Seed-2.0-Mini only becomes the better choice if you need the larger 256K context window.

Agentic

Claude 3.5 Sonnet

Claude 3.5 Sonnet

55

Seed-2.0-Mini

46.2

54
Terminal-Bench 2.0
43
62
BrowseComp
53
51
OSWorld-Verified
45

Coding

Claude 3.5 Sonnet

Claude 3.5 Sonnet

37.8

Seed-2.0-Mini

24.7

57
HumanEval
55
36
SWE-bench Verified
22
39
LiveCodeBench
21
37
SWE-bench Pro
29

Multimodal & Grounded

Claude 3.5 Sonnet

Claude 3.5 Sonnet

74.8

Seed-2.0-Mini

73.1

77
MMMU-Pro
74
72
OfficeQA Pro
72

Reasoning

Claude 3.5 Sonnet

Claude 3.5 Sonnet

67.7

Seed-2.0-Mini

64.8

63
SimpleQA
59
61
MuSR
57
83
BBH
73
70
LongBench v2
68
70
MRCRv2
72

Knowledge

Claude 3.5 Sonnet

Claude 3.5 Sonnet

50.8

Seed-2.0-Mini

44.6

65
MMLU
62
65
GPQA
61
63
SuperGPQA
59
61
OpenBookQA
57
74
MMLU-Pro
62
5
HLE
1
59
FrontierScience
54

Instruction Following

Claude 3.5 Sonnet

Claude 3.5 Sonnet

83

Seed-2.0-Mini

80

83
IFEval
80

Multilingual

Claude 3.5 Sonnet

Claude 3.5 Sonnet

80.5

Seed-2.0-Mini

71.8

85
MGSM
75
78
MMLU-ProX
70

Mathematics

Claude 3.5 Sonnet

Claude 3.5 Sonnet

71.2

Seed-2.0-Mini

65.1

65
AIME 2023
62
67
AIME 2024
64
66
AIME 2025
63
61
HMMT Feb 2023
58
63
HMMT Feb 2024
60
62
HMMT Feb 2025
59
64
BRUMO 2025
61
80
MATH-500
70

Frequently Asked Questions

Which is better, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet is ahead overall, 60 to 53. The biggest single separator in this matchup is LiveCodeBench, where the scores are 39 and 21.

Which is better for knowledge tasks, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet has the edge for knowledge tasks in this comparison, averaging 50.8 versus 44.6. Inside this category, MMLU-Pro is the benchmark that creates the most daylight between them.

Which is better for coding, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet has the edge for coding in this comparison, averaging 37.8 versus 24.7. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.

Which is better for math, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet has the edge for math in this comparison, averaging 71.2 versus 65.1. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet has the edge for reasoning in this comparison, averaging 67.7 versus 64.8. Inside this category, BBH is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet has the edge for agentic tasks in this comparison, averaging 55 versus 46.2. 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, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet has the edge for multimodal and grounded tasks in this comparison, averaging 74.8 versus 73.1. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet has the edge for instruction following in this comparison, averaging 83 versus 80. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Claude 3.5 Sonnet or Seed-2.0-Mini?

Claude 3.5 Sonnet has the edge for multilingual tasks in this comparison, averaging 80.5 versus 71.8. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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