K-Exaone vs o4-mini (high)

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

o4-mini (high) is clearly ahead on the aggregate, 59 to 49. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

K-Exaone gives you the larger context window at 256K, compared with 200K for o4-mini (high).

Quick Verdict

Pick o4-mini (high) if you want the stronger benchmark profile. K-Exaone only becomes the better choice if coding is the priority or you need the larger 256K context window.

Agentic

Coming soon

Benchmark data for this category is coming soon.

Coding

K-Exaone

K-Exaone

49.4

o4-mini (high)

44.9

49.4%
SWE-bench Verified
68.1%
Coming soon
HumanEval
74%
Coming soon
LiveCodeBench
34%
Coming soon
SWE-bench Pro
42%

Multimodal & Grounded

Coming soon

Benchmark data for this category is coming soon.

Reasoning

Coming soon

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

Coming soon
ARC-AGI-2
2.4%

Knowledge

Coming soon

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

Coming soon
MMLU
82%
Coming soon
GPQA
82%
Coming soon
SuperGPQA
80%
Coming soon
MMLU-Pro
76%
Coming soon
HLE
13%
Coming soon
FrontierScience
73%
Coming soon
SimpleQA
80%

Instruction Following

Coming soon

Benchmark data for this category is coming soon.

Multilingual

Coming soon

Benchmark data for this category is coming soon.

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 2023
83%
Coming soon
AIME 2024
93.4%
Coming soon
AIME 2025
92.7%
Coming soon
HMMT Feb 2023
79%
Coming soon
HMMT Feb 2024
81%
Coming soon
HMMT Feb 2025
80%
Coming soon
BRUMO 2025
82%
Coming soon
MATH-500
84%

Frequently Asked Questions

Which is better, K-Exaone or o4-mini (high)?

o4-mini (high) is ahead overall, 59 to 49. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 49.4% and 68.1%.

Which is better for coding, K-Exaone or o4-mini (high)?

K-Exaone has the edge for coding in this comparison, averaging 49.4 versus 44.9. 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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