K-Exaone vs o3-mini

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

o3-mini is clearly ahead on the aggregate, 70 to 49. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

o3-mini's sharpest advantage is in coding, where it averages 54.1 against 49.4. The single biggest benchmark swing on the page is SWE-bench Verified, 49.4% to 49.3%.

K-Exaone gives you the larger context window at 256K, compared with 200K for o3-mini.

Quick Verdict

Pick o3-mini if you want the stronger benchmark profile. K-Exaone only becomes the better choice if you need the larger 256K context window.

Agentic

Coming soon

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

Coming soon
Terminal-Bench 2.0
67%
Coming soon
BrowseComp
74%
Coming soon
OSWorld-Verified
61%

Coding

o3-mini

K-Exaone

49.4

o3-mini

54.1

49.4%
SWE-bench Verified
49.3%
Coming soon
SWE-bench Pro
57%

Multimodal & Grounded

Coming soon

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

Coming soon
MMMU-Pro
73%
Coming soon
OfficeQA Pro
76%

Reasoning

Coming soon

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

Coming soon
LongBench v2
82%
Coming soon
MRCRv2
80%

Knowledge

Coming soon

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

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MMLU
86.9%
Coming soon
GPQA
77.2%
Coming soon
FrontierScience
66%

Instruction Following

Coming soon

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

Coming soon
IFEval
93.9%

Multilingual

Coming soon

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

Coming soon
MMLU-ProX
73%

Mathematics

Coming soon

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

Coming soon
AIME 2024
87.3%

Frequently Asked Questions

Which is better, K-Exaone or o3-mini?

o3-mini is ahead overall, 70 to 49. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 49.4% and 49.3%.

Which is better for coding, K-Exaone or o3-mini?

o3-mini has the edge for coding in this comparison, averaging 54.1 versus 49.4. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Last updated: March 18, 2026

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