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Google: Gemini 3.1 Pro Preview vs StepFun: Step 3.5 Flash

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

Summary

Metric Google: Gemini 3.1 Pro Preview medium Release: Unknown release date StepFun: Step 3.5 Flash medium Release: Unknown release date Free Available
Rank #2 #11
Score 9.36 7.00
Consistency 10.00 8.32
Cost per result 2.443 0.000
Total Cost $0.318 $0.000
Tests Correct
Wrong Tests 1 5
Attempt pass rate 92.9% 73.8%
Flaky tests 0 3
Output Tokens 1,000 60,502
Reasoning Tokens 22,936 117,044

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Google: Gemini 3.1 Pro Preview 10.00 10.00 100.0% 0 106 2,533
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
Google: Gemini 3.1 Pro Preview 10.00 10.00 100.0% 0 292 3,164
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
Google: Gemini 3.1 Pro Preview 7.00 10.00 66.7% 0 18 10,688
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
Google: Gemini 3.1 Pro Preview 10.00 10.00 100.0% 0 72 2,436
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
Google: Gemini 3.1 Pro Preview 10.00 10.00 100.0% 0 238 3,133
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
Google: Gemini 3.1 Pro Preview 10.00 10.00 100.0% 0 274 982
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 275 3,802

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