GPT-4o vs K-Exaone

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

GPT-4o has the cleaner overall profile here, landing at 52 versus 49. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

K-Exaone is the reasoning model in the pair, while GPT-4o is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. K-Exaone gives you the larger context window at 256K, compared with 128K for GPT-4o.

Quick Verdict

Pick GPT-4o 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

GPT-4o

20

K-Exaone

49.4

58%
HumanEval
Coming soon
20%
SWE-bench Verified
49.4%

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.

62%
MuSR
Coming soon

Knowledge

Coming soon

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

66%
MMLU
Coming soon
66%
GPQA
Coming soon
64%
SuperGPQA
Coming soon
64%
MMLU-Pro
Coming soon
64%
SimpleQA
Coming soon

Instruction Following

Coming soon

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

82%
IFEval
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.

66%
AIME 2023
Coming soon
68%
AIME 2024
Coming soon
67%
AIME 2025
Coming soon
62%
HMMT Feb 2023
Coming soon
64%
HMMT Feb 2024
Coming soon
63%
HMMT Feb 2025
Coming soon
65%
BRUMO 2025
Coming soon
80%
MATH-500
Coming soon

Frequently Asked Questions

Which is better, GPT-4o or K-Exaone?

GPT-4o is ahead overall, 52 to 49. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 20% and 49.4%.

Which is better for coding, GPT-4o or K-Exaone?

K-Exaone has the edge for coding in this comparison, averaging 49.4 versus 20. 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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