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MoonshotAI: Kimi K2.5 vs StepFun: Step 3.7 Flash

Kimi K2.5 (medium) leads on average score with 7.0 vs 6.9. Kimi K2.5 (medium) has the lower benchmark cost at $0.600 vs $1.207. Step 3.7 Flash (high) is faster at 64.68s vs 99.00s, with pass rates of 65.2% vs 63.6%.

Recommended modelKimi K2.5 (medium)It has the best score here (7.0), while costing about 2.0x less than Step 3.7 Flash (high).

Last updated at: 2026-07-24

Metric Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27 Step 3.7 Flash Step 3.7 Flash high Release: 2026-05-29
Score 7.0 6.9
Rank #81 #90
Reliability 10.0 10.0
Consistency 7.0 8.0
Tests Correct
Attempt pass rate 65.2% 63.6%
Flaky tests 8 5
Total Runs 66 66
Cost per result 4.789 10.973
Total Cost $0.600 $1.207
Input Price $0.571 / 1M $0.200 / 1M
Output Price $2.850 / 1M $1.150 / 1M
Total Input Tokens 118,448 98,691
Output Tokens 62,124 1,032,395
Reasoning Tokens 165,243 0
Response Time (avg) 99.00s 64.68s
Response Time (max) 281.00s 364.99s
Response Time (total) 1485.04s 1423.01s

Hamster playing table tennis

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

#81 MoonshotAI: Kimi K2.5

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

#90 Step 3.7 Flash

high
Cost
$0.007
Time
63.6s
Tokens
6,030 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
Kimi K2.5 6.1 4.6 66.7% 2 217.49s 6,935 5,705 74,693
Step 3.7 Flash 4.0 6.0 22.2% 1 206.21s 6,057 327,340 0

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