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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 low Release: 2026-05-19 Kimi K2.5 Kimi K2.5 none Release: 2026-01-27
Score 9.3 5.3
Rank #3 #126
Reliability 10.0 10.0
Consistency 10.0 8.9
Tests Correct
Attempt pass rate 90.0% 36.7%
Flaky tests 0 3
Total Runs 60 60
Cost per result 1.582 0.428
Total Cost $0.285 $0.026
Input Price $1.500 / 1M $0.400 / 1M
Output Price $9.000 / 1M $1.900 / 1M
Output Tokens 2,027 6,734
Reasoning Tokens 23,938 0
Response Time (avg) 2.98s 14.16s
Response Time (max) 6.44s 42.13s
Response Time (total) 59.59s 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 2.52s 209 2,536
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 6.8 10.0 50.0% 0 5.54s 452 6,839
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 6.44s 351 3,050
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 1.81s 279 1,164
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 7.7 10.0 66.7% 0 3.39s 12 4,538
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 2.27s 119 916
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 9.9 10.0 100.0% 0 1.86s 71 1,652
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 2.35s 288 2,150
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 10.0 10.0 100.0% 0 3.27s 234 403
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 1.88s 12 690
Kimi K2.5 3.0 10.0 0.0% 0 3.90s 20 0

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