Seed 1.6 vs o1-pro

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

Seed 1.6 is clearly ahead on the aggregate, 65 to 45. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Seed 1.6's sharpest advantage is in multilingual, where it averages 83.4 against 52. The single biggest benchmark swing on the page is MMMU-Pro, 80 to 48. o1-pro does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.

o1-pro is also the more expensive model on tokens at $150.00 input / $600.00 output per 1M tokens, versus $0.25 input / $2.00 output per 1M tokens for Seed 1.6. That is roughly 300.0x on output cost alone. Seed 1.6 gives you the larger context window at 256K, compared with 200K for o1-pro.

Quick Verdict

Pick Seed 1.6 if you want the stronger benchmark profile. o1-pro only becomes the better choice if knowledge is the priority.

Agentic

Seed 1.6

Seed 1.6

62.3

o1-pro

39.7

63
Terminal-Bench 2.0
40
67
BrowseComp
50
58
OSWorld-Verified
32

Coding

Seed 1.6

Seed 1.6

42.4

o1-pro

23

64
HumanEval
Coming soon
46
SWE-bench Verified
Coming soon
38
LiveCodeBench
Coming soon
46
SWE-bench Pro
23

Multimodal & Grounded

Seed 1.6

Seed 1.6

79.6

o1-pro

48.5

80
MMMU-Pro
48
79
OfficeQA Pro
49

Reasoning

Seed 1.6

Seed 1.6

74.5

o1-pro

56.2

69
SimpleQA
Coming soon
69
MuSR
Coming soon
86
BBH
Coming soon
77
LongBench v2
54
78
MRCRv2
59

Knowledge

o1-pro

Seed 1.6

56.4

o1-pro

69.9

73
MMLU
Coming soon
72
GPQA
79
70
SuperGPQA
Coming soon
68
OpenBookQA
Coming soon
75
MMLU-Pro
Coming soon
11
HLE
Coming soon
68
FrontierScience
63

Instruction Following

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

87
IFEval
Coming soon

Multilingual

Seed 1.6

Seed 1.6

83.4

o1-pro

52

88
MGSM
Coming soon
81
MMLU-ProX
52

Mathematics

o1-pro

Seed 1.6

75.9

o1-pro

86

72
AIME 2023
Coming soon
74
AIME 2024
86
73
AIME 2025
Coming soon
68
HMMT Feb 2023
Coming soon
70
HMMT Feb 2024
Coming soon
69
HMMT Feb 2025
Coming soon
71
BRUMO 2025
Coming soon
82
MATH-500
Coming soon

Frequently Asked Questions

Which is better, Seed 1.6 or o1-pro?

Seed 1.6 is ahead overall, 65 to 45. The biggest single separator in this matchup is MMMU-Pro, where the scores are 80 and 48.

Which is better for knowledge tasks, Seed 1.6 or o1-pro?

o1-pro has the edge for knowledge tasks in this comparison, averaging 69.9 versus 56.4. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, Seed 1.6 or o1-pro?

Seed 1.6 has the edge for coding in this comparison, averaging 42.4 versus 23. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.

Which is better for math, Seed 1.6 or o1-pro?

o1-pro has the edge for math in this comparison, averaging 86 versus 75.9. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Seed 1.6 or o1-pro?

Seed 1.6 has the edge for reasoning in this comparison, averaging 74.5 versus 56.2. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Seed 1.6 or o1-pro?

Seed 1.6 has the edge for agentic tasks in this comparison, averaging 62.3 versus 39.7. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Seed 1.6 or o1-pro?

Seed 1.6 has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 48.5. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Seed 1.6 or o1-pro?

Seed 1.6 has the edge for multilingual tasks in this comparison, averaging 83.4 versus 52. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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