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MoonshotAI: Kimi K2.5 vs StepFun: Step 3.5 Flash

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Last updated at : 2026-02-27 15:16

Summary

Metric MoonshotAI: Kimi K2.5 medium Release: Unknown release date StepFun: Step 3.5 Flash medium Release: Unknown release date Free Available
Rank #17 #11
Score 6.29 7.00
Consistency 7.69 8.32
Cost per result 2.335 0.000
Total Cost $0.187 $0.000
Tests Correct
Wrong Tests 6 5
Attempt pass rate 73.8% 73.8%
Flaky tests 4 3
Output Tokens 30,504 60,502
Reasoning Tokens 58,467 117,044

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
MoonshotAI: Kimi K2.5 7.00 7.21 88.9% 1 335 6,255
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 13,924 17,208
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
MoonshotAI: Kimi K2.5 10.00 10.00 100.0% 0 1,181 6,049
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 535 11,548
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
MoonshotAI: Kimi K2.5 1.00 4.41 33.3% 2 20,696 30,894
StepFun: Step 3.5 Flash 4.00 7.21 44.4% 1 40,942 74,237
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
MoonshotAI: Kimi K2.5 9.50 10.00 100.0% 0 3,777 4,967
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 2,121 3,274
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
MoonshotAI: Kimi K2.5 5.00 7.61 55.6% 1 4,273 9,490
StepFun: Step 3.5 Flash 2.00 4.96 33.3% 2 2,705 6,975
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
MoonshotAI: Kimi K2.5 10.00 10.00 100.0% 0 242 812
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 275 3,802

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