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Qwen: Qwen3.5 Plus 2026-02-15 vs StepFun: Step 3.5 Flash

Model Name:

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

Summary

Metric Qwen: Qwen3.5 Plus 2026-02-15 medium Release: Unknown release date StepFun: Step 3.5 Flash medium Release: Unknown release date Free Available
Rank #4 #11
Score 8.64 7.00
Consistency 10.00 8.32
Cost per result 1.955 0.000
Total Cost $0.235 $0.000
Tests Correct
Wrong Tests 2 5
Attempt pass rate 85.7% 73.8%
Flaky tests 0 3
Output Tokens 1,258 60,502
Reasoning Tokens 93,374 117,044

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 186 5,926
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
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 283 14,892
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
Qwen: Qwen3.5 Plus 2026-02-15 4.00 10.00 33.3% 0 56 39,882
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
Qwen: Qwen3.5 Plus 2026-02-15 9.50 9.99 100.0% 0 102 9,257
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
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 322 22,508
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
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 309 909
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 275 3,802

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