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OpenAI: GPT-5.2 vs StepFun: Step 3.5 Flash

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

Summary

Metric OpenAI: GPT-5.2 medium Release: Unknown release date StepFun: Step 3.5 Flash medium Release: Unknown release date Free Available
Rank #12 #11
Score 6.93 7.00
Consistency 8.22 8.32
Cost per result 2.780 0.000
Total Cost $0.251 $0.000
Tests Correct
Wrong Tests 5 5
Attempt pass rate 76.2% 73.8%
Flaky tests 3 3
Output Tokens 1,869 60,502
Reasoning Tokens 14,190 117,044

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.2 7.00 7.28 77.8% 1 549 2,002
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
OpenAI: GPT-5.2 10.00 10.00 100.0% 0 234 499
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
OpenAI: GPT-5.2 4.00 7.21 55.6% 1 42 9,690
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
OpenAI: GPT-5.2 9.50 10.00 100.0% 0 95 587
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
OpenAI: GPT-5.2 8.00 10.00 66.7% 0 710 943
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
OpenAI: GPT-5.2 1.00 1.62 66.7% 1 239 469
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 275 3,802

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