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 48. 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 multimodal & grounded, where it averages 66 against 48.8. The single biggest benchmark swing on the page is OpenBookQA, 75 to 46.
Pick Aion-2.0 if you want the stronger benchmark profile. GPT-OSS 120B only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Aion-2.0
51.7
GPT-OSS 120B
44.8
Aion-2.0
33.2
GPT-OSS 120B
28.1
Aion-2.0
66
GPT-OSS 120B
48.8
Aion-2.0
70.3
GPT-OSS 120B
55.2
Aion-2.0
54
GPT-OSS 120B
41.5
Aion-2.0
93
GPT-OSS 120B
79
Aion-2.0
78.1
GPT-OSS 120B
70.7
Aion-2.0
72.1
GPT-OSS 120B
59.5
Aion-2.0 is ahead overall, 58 to 48. The biggest single separator in this matchup is OpenBookQA, where the scores are 75 and 46.
Aion-2.0 has the edge for knowledge tasks in this comparison, averaging 54 versus 41.5. Inside this category, OpenBookQA is the benchmark that creates the most daylight between them.
Aion-2.0 has the edge for coding in this comparison, averaging 33.2 versus 28.1. Inside this category, HumanEval is the benchmark that creates the most daylight between them.
Aion-2.0 has the edge for math in this comparison, averaging 72.1 versus 59.5. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
Aion-2.0 has the edge for reasoning in this comparison, averaging 70.3 versus 55.2. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
Aion-2.0 has the edge for agentic tasks in this comparison, averaging 51.7 versus 44.8. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.
Aion-2.0 has the edge for multimodal and grounded tasks in this comparison, averaging 66 versus 48.8. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Aion-2.0 has the edge for instruction following in this comparison, averaging 93 versus 79. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Aion-2.0 has the edge for multilingual tasks in this comparison, averaging 78.1 versus 70.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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