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Google: Gemini 2.5 Flash vs StepFun: Step 3.5 Flash

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Last updated at: 2026-03-06

Metric Google: Gemini 2.5 Flash medium Release: 2025-06-17 StepFun: Step 3.5 Flash medium Release: 2026-02-01 Free Available
Rank #16 #13
Avg Score 7.4 7.4
Consistency 9.5 9.1
Cost per result 2.619 0.000
Total Cost $0.288 $0.000
Tests Correct
Attempt pass rate 72.9% 68.8%
Flaky tests 1 2
Total Runs 48 (16 x 3) 48 (16 x 3)
Output Tokens 1,370 71,452
Reasoning Tokens 110,522 155,147
Response Time (avg) 12.35s 29.10s
Response Time (max) 95.48s 170.45s
Response Time (total) 197.62s 290.96s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Avg Score vs Response Time (avg)

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Google: Gemini 2.5 Flash 7.3 10.0 66.7% 0 6.98s 249 8,832
StepFun: Step 3.5 Flash 10.0 10.0 100.0% 0 18.54s 13,924 17,208
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Google: Gemini 2.5 Flash 10.0 10.0 100.0% 0 28.44s 303 11,922
StepFun: Step 3.5 Flash 10.0 10.0 100.0% 0 29.57s 1,176 12,984
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Google: Gemini 2.5 Flash 9.9 10.0 100.0% 0 4.06s 279 2,325
StepFun: Step 3.5 Flash 10.0 10.0 100.0% 0 15.01s 600 13,886
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Google: Gemini 2.5 Flash 4.0 7.2 55.6% 1 37.34s 18 80,702
StepFun: Step 3.5 Flash 4.0 7.2 44.4% 1 170.45s 45,350 90,436
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Google: Gemini 2.5 Flash 4.0 10.0 0.0% 0 4.86s 92 1,899
StepFun: Step 3.5 Flash 6.0 10.0 0.0% 0 6.54s 2,214 2,584
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Google: Gemini 2.5 Flash 9.5 10.0 100.0% 0 2.62s 69 1,203
StepFun: Step 3.5 Flash 9.0 6.8 83.3% 1 4.98s 2,284 3,412
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Google: Gemini 2.5 Flash 7.0 10.0 66.7% 0 3.94s 126 2,499
StepFun: Step 3.5 Flash 4.0 10.0 33.3% 0 7.72s 5,629 10,835
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Google: Gemini 2.5 Flash 10.0 10.0 100.0% 0 6.20s 234 1,140
StepFun: Step 3.5 Flash 10.0 10.0 100.0% 0 11.91s 275 3,802

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