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MoonshotAI: Kimi K2.5 vs OpenAI: GPT-5.4 Mini

Last updated at: 2026-04-04

Metric Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27 GPT-5.4 Mini GPT-5.4 Mini medium Release: 2026-03-17
Score 7.2 7.1
Rank #40 #42
Consistency 7.2 7.2
Tests Correct
Attempt pass rate 72.6% 68.6%
Flaky tests 6 6
Total Runs 51 51
Cost per result 2.232 3.610
Total Cost $0.201 $0.289
Input Price $0.383 / 1M $0.750 / 1M
Output Price $1.720 / 1M $4.500 / 1M
Output Tokens 40,907 1,708
Reasoning Tokens 75,121 58,019
Response Time (avg) 64.59s 15.66s
Response Time (max) 137.29s 102.91s
Response Time (total) 645.93s 266.14s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 7.3 5.8 83.3% 2 51.38s 2,789 8,880
GPT-5.4 Mini 8.6 7.9 91.7% 1 4.05s 296 2,876
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 71.37s 703 3,713
GPT-5.4 Mini 10.0 10.0 100.0% 0 17.81s 317 4,317
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 49.78s 563 7,940
GPT-5.4 Mini 10.0 10.0 100.0% 0 2.43s 234 650
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 3.5 4.4 33.3% 2 137.29s 20,753 30,564
GPT-5.4 Mini 4.1 4.4 44.5% 2 65.31s 60 43,286
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 6.5 3.4 66.7% 1 69.73s 3,815 4,262
GPT-5.4 Mini 4.5 10.0 0.0% 0 3.72s 150 510
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 92.47s 5,371 6,547
GPT-5.4 Mini 7.4 6.5 66.7% 1 2.50s 129 1,337
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 5.3 7.3 44.4% 1 45.40s 6,671 12,403
GPT-5.4 Mini 6.8 7.9 55.6% 1 4.33s 271 2,449
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 31.74s 242 812
GPT-5.4 Mini 4.7 1.6 66.7% 1 9.62s 251 2,594

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