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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 none Release: Unknown release date StepFun: Step 3.5 Flash medium Release: Unknown release date Free Available
Rank #32 #11
Score 4.07 7.00
Consistency 8.92 8.32
Cost per result 0.232 0.000
Total Cost $0.010 $0.000
Tests Correct
Wrong Tests 10 5
Attempt pass rate 35.7% 73.8%
Flaky tests 2 3
Output Tokens 1,915 60,502
Reasoning Tokens 0 117,044

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
MoonshotAI: Kimi K2.5 2.67 7.86 11.1% 1 363 0
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 5.50 5.81 83.3% 1 995 0
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 4.00 10.00 33.3% 0 29 0
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 5.00 9.99 50.0% 0 61 0
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 2.00 9.92 0.0% 0 247 0
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% 0 220 0
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 275 3,802

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