Aion-2.0 vs Grok 3 [Beta]

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 38. 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 instruction following, where it averages 93 against 67. The single biggest benchmark swing on the page is OpenBookQA, 75 to 37.

Quick Verdict

Pick Aion-2.0 if you want the stronger benchmark profile. Grok 3 [Beta] 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

Grok 3 [Beta]

35.7

48
Terminal-Bench 2.0
32
60
BrowseComp
41
50
OSWorld-Verified
36

Coding

Aion-2.0

Aion-2.0

33.2

Grok 3 [Beta]

16.3

66
HumanEval
34
35
SWE-bench Verified
19
29
LiveCodeBench
11
37
SWE-bench Pro
21

Multimodal & Grounded

Aion-2.0

Aion-2.0

66

Grok 3 [Beta]

43.2

61
MMMU-Pro
40
72
OfficeQA Pro
47

Reasoning

Aion-2.0

Aion-2.0

70.3

Grok 3 [Beta]

47.4

76
SimpleQA
40
74
MuSR
38
76
BBH
62
64
LongBench v2
53
65
MRCRv2
52

Knowledge

Aion-2.0

Aion-2.0

54

Grok 3 [Beta]

34

78
MMLU
42
77
GPQA
41
75
SuperGPQA
39
75
OpenBookQA
37
67
MMLU-Pro
53
5
HLE
3
66
FrontierScience
40

Instruction Following

Aion-2.0

Aion-2.0

93

Grok 3 [Beta]

67

93
IFEval
67

Multilingual

Aion-2.0

Aion-2.0

78.1

Grok 3 [Beta]

58.7

80
MGSM
60
77
MMLU-ProX
58

Mathematics

Aion-2.0

Aion-2.0

72.1

Grok 3 [Beta]

49.1

74
AIME 2023
42
76
AIME 2024
44
75
AIME 2025
43
70
HMMT Feb 2023
38
72
HMMT Feb 2024
40
71
HMMT Feb 2025
39
73
BRUMO 2025
41
71
MATH-500
59

Frequently Asked Questions

Which is better, Aion-2.0 or Grok 3 [Beta]?

Aion-2.0 is ahead overall, 58 to 38. The biggest single separator in this matchup is OpenBookQA, where the scores are 75 and 37.

Which is better for knowledge tasks, Aion-2.0 or Grok 3 [Beta]?

Aion-2.0 has the edge for knowledge tasks in this comparison, averaging 54 versus 34. Inside this category, OpenBookQA is the benchmark that creates the most daylight between them.

Which is better for coding, Aion-2.0 or Grok 3 [Beta]?

Aion-2.0 has the edge for coding in this comparison, averaging 33.2 versus 16.3. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Aion-2.0 or Grok 3 [Beta]?

Aion-2.0 has the edge for math in this comparison, averaging 72.1 versus 49.1. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Aion-2.0 or Grok 3 [Beta]?

Aion-2.0 has the edge for reasoning in this comparison, averaging 70.3 versus 47.4. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Aion-2.0 or Grok 3 [Beta]?

Aion-2.0 has the edge for agentic tasks in this comparison, averaging 51.7 versus 35.7. 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 Grok 3 [Beta]?

Aion-2.0 has the edge for multimodal and grounded tasks in this comparison, averaging 66 versus 43.2. 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 Grok 3 [Beta]?

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 Grok 3 [Beta]?

Aion-2.0 has the edge for multilingual tasks in this comparison, averaging 78.1 versus 58.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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