K-Exaone vs Kimi K2.5 (Reasoning)

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

Kimi K2.5 (Reasoning) is clearly ahead on the aggregate, 71 to 49. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Kimi K2.5 (Reasoning)'s sharpest advantage is in coding, where it averages 70.5 against 49.4. The single biggest benchmark swing on the page is SWE-bench Verified, 49.4% to 76.8%.

K-Exaone gives you the larger context window at 256K, compared with 128K for Kimi K2.5 (Reasoning).

Quick Verdict

Pick Kimi K2.5 (Reasoning) 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
50.8%
Coming soon
BrowseComp
60.6%
Coming soon
OSWorld-Verified
63.3%

Coding

Kimi K2.5 (Reasoning)

K-Exaone

49.4

Kimi K2.5 (Reasoning)

70.5

49.4%
SWE-bench Verified
76.8%
Coming soon
HumanEval
99%
Coming soon
LiveCodeBench
85%
Coming soon
SWE-Rebench
57.4%

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
78.5%

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
61%

Knowledge

Coming soon

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

Coming soon
GPQA
87.6%
Coming soon
MMLU-Pro
87.1%
Coming soon
SimpleQA
54%

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
94%

Multilingual

Coming soon

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

Coming soon
MGSM
96%

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 2025
96.1%
Coming soon
HMMT Feb 2025
95.4%

Frequently Asked Questions

Which is better, K-Exaone or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) is ahead overall, 71 to 49. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 49.4% and 76.8%.

Which is better for coding, K-Exaone or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) has the edge for coding in this comparison, averaging 70.5 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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