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

Last updated at: 2026-05-19

Metric Gemini 3.5 Flash Gemini 3.5 Flash low Release: 2026-05-19 Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27
Score 9.6 6.8
Rank #2 #76
Reliability 10.0 10.0
Consistency 10.0 7.0
Tests Correct
Attempt pass rate 94.7% 68.4%
Flaky tests 0 7
Total Runs 57 57
Cost per result 1.359 2.616
Total Cost $0.245 $0.236
Input Price $1.500 / 1M $0.400 / 1M
Output Price $9.000 / 1M $1.900 / 1M
Output Tokens 2,003 42,188
Reasoning Tokens 20,245 92,514
Response Time (avg) 2.84s 73.39s
Response Time (max) 6.44s 150.77s
Response Time (total) 54.00s 880.65s

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Score vs Total Cost

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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 7.3 5.8 83.3% 2 51.38s 2,789 8,880
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 5.49s 428 3,146
Kimi K2.5 4.7 1.6 66.7% 1 150.77s 1,269 9,749
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 10.0 10.0 100.0% 0 71.37s 703 3,713
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 10.0 10.0 100.0% 0 49.78s 563 7,940
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 3.5 4.4 33.3% 2 137.29s 20,753 30,564
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 6.5 3.4 66.7% 1 69.73s 3,815 4,262
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 10.0 10.0 100.0% 0 92.47s 5,371 6,547
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 5.3 7.3 44.4% 1 45.40s 6,671 12,403
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 31.74s 242 812
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 83.95s 12 7,644

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