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Google: Gemini 3.5 Flash vs MoonshotAI: Kimi K2.5

Last updated at: 2026-05-22

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 Kimi K2.5 Kimi K2.5 none Release: 2026-01-27
Score 9.6 5.3
Rank #2 #126
Reliability 10.0 10.0
Consistency 9.6 8.9
Tests Correct
Attempt pass rate 96.7% 36.7%
Flaky tests 1 3
Total Runs 60 60
Cost per result 5.231 0.428
Total Cost $0.994 $0.026
Input Price $1.500 / 1M $0.400 / 1M
Output Price $9.000 / 1M $1.900 / 1M
Output Tokens 1,969 6,734
Reasoning Tokens 102,679 0
Response Time (avg) 8.30s 14.16s
Response Time (max) 34.82s 42.13s
Response Time (total) 165.92s 184.10s

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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.57s 174 4,997
Kimi K2.5 3.6 8.4 8.3% 1 6.24s 373 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 24.62s 450 34,170
Kimi K2.5 6.8 10.0 50.0% 0 35.97s 4,704 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.37s 351 16,323
Kimi K2.5 2.8 2.1 33.3% 1 19.16s 748 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 6.43s 279 8,466
Kimi K2.5 7.3 5.8 83.3% 1 42.13s 187 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.6 7.2 77.8% 1 14.09s 12 24,721
Kimi K2.5 5.3 10.0 33.3% 0 4.38s 29 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.63s 115 1,650
Kimi K2.5 10.0 10.0 100.0% 0 4.00s 76 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.35s 70 3,799
Kimi K2.5 6.5 10.0 50.0% 0 2.67s 60 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.23s 241 4,940
Kimi K2.5 3.0 10.0 0.0% 0 4.73s 317 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 9.8 10.0 100.0% 0 4.96s 265 1,608
Kimi K2.5 10.0 10.0 100.0% 0 13.99s 220 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.94s 12 2,005
Kimi K2.5 3.0 10.0 0.0% 0 3.90s 20 0

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