Problem Analysis #18

Kimi K3 · Run 1

Correct
13.44s
550 toks

API · no tools. This is the prompt and response recorded for this attempt; a full solution may not have been returned.

Problem Statement

This is a Korean CSAT mathematics numerical-answer problem. Solve it and put only the final integer value inside \boxed{}.

Problem 19 For all real numbersxwith−2≤x≤2, the inequality −k≤2x 3 + 3x2 −12x−8≤k holds. Find the smallest possible positive value ofk. [3 points]

Ground Truth
15
Recorded model response / solution
Reasoning Process

\boxed{15}

Final Model Output
15

Comparative Analysis (P18) (Average across runs)

Averages use reported measurements only. Missing usage is not treated as zero.

Avg Time Taken

Motif 3
13.7
Solar Pro 4
12.8
Kimi K3
11.7
K-EXAONE-2
1.5

Avg Token Usage

Solar Pro 4
931.3
K-EXAONE-2
625.3
Kimi K3
524.3
    CSAT 2026 · Problem 18 · Kimi K3 | EntropyMath