o3-pro vs Seed-2.0-Lite

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

o3-pro is clearly ahead on the aggregate, 71 to 63. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

o3-pro's sharpest advantage is in agentic, where it averages 70.4 against 55.1. The single biggest benchmark swing on the page is GPQA, 89 to 70. 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.

o3-pro 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. Seed-2.0-Lite gives you the larger context window at 256K, compared with 200K for o3-pro.

Quick Verdict

Pick o3-pro if you want the stronger benchmark profile. Seed-2.0-Lite only becomes the better choice if instruction following is the priority or you need the larger 256K context window.

Agentic

o3-pro

o3-pro

70.4

Seed-2.0-Lite

55.1

69
Terminal-Bench 2.0
52
76
BrowseComp
63
68
OSWorld-Verified
53

Coding

o3-pro

o3-pro

49.2

Seed-2.0-Lite

41.4

80
HumanEval
63
46
SWE-bench Verified
45
44
LiveCodeBench
37
55
SWE-bench Pro
45

Multimodal & Grounded

Seed-2.0-Lite

o3-pro

74.1

Seed-2.0-Lite

79.6

70
MMMU-Pro
80
79
OfficeQA Pro
79

Reasoning

o3-pro

o3-pro

83.6

Seed-2.0-Lite

73

86
SimpleQA
68
84
MuSR
66
89
BBH
85
81
LongBench v2
76
81
MRCRv2
77

Knowledge

o3-pro

o3-pro

67.1

Seed-2.0-Lite

53.9

88
MMLU
71
89
GPQA
70
87
SuperGPQA
68
85
OpenBookQA
66
75
MMLU-Pro
73
26
HLE
7
77
FrontierScience
66

Instruction Following

Seed-2.0-Lite

o3-pro

82

Seed-2.0-Lite

89

82
IFEval
89

Multilingual

Seed-2.0-Lite

o3-pro

81.1

Seed-2.0-Lite

82.5

83
MGSM
87
80
MMLU-ProX
80

Mathematics

o3-pro

o3-pro

89

Seed-2.0-Lite

75

90
AIME 2023
71
92
AIME 2024
73
91
AIME 2025
72
86
HMMT Feb 2023
67
88
HMMT Feb 2024
69
87
HMMT Feb 2025
68
89
BRUMO 2025
70
89
MATH-500
81

Frequently Asked Questions

Which is better, o3-pro or Seed-2.0-Lite?

o3-pro is ahead overall, 71 to 63. The biggest single separator in this matchup is GPQA, where the scores are 89 and 70.

Which is better for knowledge tasks, o3-pro or Seed-2.0-Lite?

o3-pro has the edge for knowledge tasks in this comparison, averaging 67.1 versus 53.9. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, o3-pro or Seed-2.0-Lite?

o3-pro has the edge for coding in this comparison, averaging 49.2 versus 41.4. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, o3-pro or Seed-2.0-Lite?

o3-pro has the edge for math in this comparison, averaging 89 versus 75. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, o3-pro or Seed-2.0-Lite?

o3-pro has the edge for reasoning in this comparison, averaging 83.6 versus 73. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, o3-pro or Seed-2.0-Lite?

o3-pro has the edge for agentic tasks in this comparison, averaging 70.4 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, o3-pro or Seed-2.0-Lite?

Seed-2.0-Lite has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 74.1. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, o3-pro or Seed-2.0-Lite?

Seed-2.0-Lite has the edge for instruction following in this comparison, averaging 89 versus 82. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, o3-pro or Seed-2.0-Lite?

Seed-2.0-Lite has the edge for multilingual tasks in this comparison, averaging 82.5 versus 81.1. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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