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Gemini 3.5 Flash vs Kimi K2.5 (medium)

Kimi K2.5 (medium) leads on average score with 7.0 vs 6.9. Kimi K2.5 (medium) has the lower benchmark cost at $0.639 vs $1.093. Gemini 3.5 Flash is faster at 10.18s vs 98.19s, with pass rates of 69.7% vs 63.6%.

Last updated at: 2026-08-29

Rank
#129
Total Output Tokens
119,100
Response Time (avg)
10.18s
Total Cost
$1.093
Rank
#125
Total Output Tokens
220,942
Response Time (avg)
98.19s
Total Cost
$0.639
Recommended model Gemini 3.5 Flash

Its score stays close to the best score here (6.9 vs 7.0), while responding about 9.6x faster than Kimi K2.5 (medium).

Detailed comparison

Metric Gemini 3.5 Flash Gemini 3.5 Flash none Release: 2026-05-19 Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27
Score 6.9 7.0
Rank #129 #125
Reliability 10.0 10.0
Consistency 8.9 7.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 69.7% 63.6%
Flaky tests 3 8
Total Runs 66 66
Cost per result 7.805 4.849
Total Cost $1.093 $0.639
Input Price $1.500 / 1M $0.600 / 1M
Output Price $9.000 / 1M $3.000 / 1M
Total Input Tokens 13,852 118,496
Output Tokens 119,100 53,522
Reasoning Tokens 0 167,420
Response Time (avg) 10.18s 98.19s
Response Time (max) 64.36s 281.00s
Response Time (total) 183.29s 1571.05s
Parameters ~500B total (~20B active) 1T total (32B active)
Availability Closed Weights available

Model generation showcase

Hamster playing table tennis

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

#129 Gemini 3.5 Flash

none
Cost
$0.225
Time
125.5s
Tokens
25,004 tok

#125 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

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 8.8 7.8 88.9% 1 34.69s 8,122 75,927 0
Kimi K2.5 6.1 4.6 66.7% 2 217.49s 6,935 5,705 74,693

Quick Compare

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