Aion-2.0 vs DeepSeek V3.1

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

Aion-2.0 is clearly ahead on the aggregate, 58 to 35. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Aion-2.0's sharpest advantage is in reasoning, where it averages 70.3 against 40.7. The single biggest benchmark swing on the page is OpenBookQA, 75 to 28.

Quick Verdict

Pick Aion-2.0 if you want the stronger benchmark profile. DeepSeek V3.1 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

Aion-2.0

Aion-2.0

51.7

DeepSeek V3.1

32.9

48
Terminal-Bench 2.0
29
60
BrowseComp
39
50
OSWorld-Verified
33

Coding

Aion-2.0

Aion-2.0

33.2

DeepSeek V3.1

14.8

66
HumanEval
25
35
SWE-bench Verified
13
29
LiveCodeBench
15
37
SWE-bench Pro
15

Multimodal & Grounded

Aion-2.0

Aion-2.0

66

DeepSeek V3.1

39.5

61
MMMU-Pro
35
72
OfficeQA Pro
45

Reasoning

Aion-2.0

Aion-2.0

70.3

DeepSeek V3.1

40.7

76
SimpleQA
31
74
MuSR
29
76
BBH
61
64
LongBench v2
46
65
MRCRv2
48

Knowledge

Aion-2.0

Aion-2.0

54

DeepSeek V3.1

30.5

78
MMLU
33
77
GPQA
32
75
SuperGPQA
30
75
OpenBookQA
28
67
MMLU-Pro
53
5
HLE
2
66
FrontierScience
37

Instruction Following

Aion-2.0

Aion-2.0

93

DeepSeek V3.1

67

93
IFEval
67

Multilingual

Aion-2.0

Aion-2.0

78.1

DeepSeek V3.1

60.8

80
MGSM
64
77
MMLU-ProX
59

Mathematics

Aion-2.0

Aion-2.0

72.1

DeepSeek V3.1

44.2

74
AIME 2023
33
76
AIME 2024
35
75
AIME 2025
34
70
HMMT Feb 2023
29
72
HMMT Feb 2024
31
71
HMMT Feb 2025
30
73
BRUMO 2025
32
71
MATH-500
59

Frequently Asked Questions

Which is better, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 is ahead overall, 58 to 35. The biggest single separator in this matchup is OpenBookQA, where the scores are 75 and 28.

Which is better for knowledge tasks, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 has the edge for knowledge tasks in this comparison, averaging 54 versus 30.5. Inside this category, OpenBookQA is the benchmark that creates the most daylight between them.

Which is better for coding, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 has the edge for coding in this comparison, averaging 33.2 versus 14.8. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 has the edge for math in this comparison, averaging 72.1 versus 44.2. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 has the edge for reasoning in this comparison, averaging 70.3 versus 40.7. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 has the edge for agentic tasks in this comparison, averaging 51.7 versus 32.9. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 has the edge for multimodal and grounded tasks in this comparison, averaging 66 versus 39.5. Inside this category, OfficeQA Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 has the edge for instruction following in this comparison, averaging 93 versus 67. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Aion-2.0 or DeepSeek V3.1?

Aion-2.0 has the edge for multilingual tasks in this comparison, averaging 78.1 versus 60.8. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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