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

Summary

Gemini 3.5 Flash vs Kimi K2.5 benchmark comparison: Gemini 3.5 Flash leads on average score with 9.8 vs 7.5. Kimi K2.5 has the lower benchmark cost at $0.348 vs $1.115. Gemini 3.5 Flash is faster at 8.84s vs 98.43s, with pass rates of 96.8% vs 68.3%.

Recommended model: Gemini 3.5 Flash - It has the best score here (9.8), while responding about 11.1x faster than Kimi K2.5.

Last updated at: 2026-07-02

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27
Score 9.8 7.5
Rank #1 #45
Reliability 10.0 10.0
Consistency 9.6 6.9
Tests Correct
Attempt pass rate 96.8% 68.3%
Flaky tests 1 8
Total Runs 63 63
Cost per result 5.575 3.704
Total Cost $1.115 $0.348
Input Price $1.500 / 1M $0.375 / 1M
Output Price $9.000 / 1M $2.025 / 1M
Total Input Tokens 37,594 34,312
Output Tokens 1,975 48,379
Reasoning Tokens 115,638 157,747
Response Time (avg) 8.84s 98.43s
Response Time (max) 34.82s 281.00s
Response Time (total) 185.57s 1378.03s

Generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#1 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 tok

#45 MoonshotAI: Kimi K2.5

medium
Cost
$0.030
Time
58.6s
Tokens
8,683 tok

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) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.57s 492 174 4,997
Kimi K2.5 7.3 5.8 83.3% 2 51.38s 634 2,789 8,880
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
Kimi K2.5 6.1 4.6 66.7% 2 217.49s 6,935 5,705 74,693
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.37s 12,873 351 16,323
Kimi K2.5 10.0 10.0 100.0% 0 71.37s 11,280 703 3,713
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 6.43s 7,548 279 8,466
Kimi K2.5 10.0 10.0 100.0% 0 49.78s 7,020 563 7,940
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.6 7.2 77.8% 1 14.09s 633 12 24,721
Kimi K2.5 3.5 4.4 33.3% 2 137.29s 485 20,753 30,564
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.63s 486 115 1,650
Kimi K2.5 6.5 3.4 66.7% 1 69.73s 480 3,815 4,262
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.35s 615 70 3,799
Kimi K2.5 10.0 10.0 100.0% 0 92.47s 675 5,371 6,547
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.23s 558 241 4,940
Kimi K2.5 5.3 7.3 44.4% 1 43.23s 659 8,426 12,692
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 9.8 10.0 100.0% 0 4.96s 6,115 265 1,608
Kimi K2.5 10.0 10.0 100.0% 0 31.74s 5,933 242 812
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.94s 156 12 2,005
Kimi K2.5 3.0 10.0 0.0% 0 83.95s 211 12 7,644

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