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

Last updated at: 2026-05-19

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 6.8 7.2
Rank #76 #67
Reliability 10.0 10.0
Consistency 7.0 7.9
Tests Correct
Attempt pass rate 68.4% 68.4%
Flaky tests 7 5
Total Runs 57 57
Cost per result 2.616 3.443
Total Cost $0.236 $0.345
Input Price $0.400 / 1M $0.750 / 1M
Output Price $1.900 / 1M $4.500 / 1M
Output Tokens 42,188 2,163
Reasoning Tokens 92,514 69,741
Response Time (avg) 73.39s 16.00s
Response Time (max) 150.77s 102.91s
Response Time (total) 880.65s 303.99s

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
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 4.7 1.6 66.7% 1 150.77s 1,269 9,749
GPT-5.4 Mini 10.0 10.0 100.0% 0 7.76s 423 1,548
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 6.7 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 7.8 10.0 66.7% 0 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
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 3.0 10.0 0.0% 0 83.95s 12 7,644
GPT-5.4 Mini 3.0 10.0 0.0% 0 30.10s 32 10,174

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