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Google: Gemini 3.5 Flash vs Google: Gemini 3 Flash Preview

Last updated at: 2026-05-19

Metric Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19 Gemini 3 Flash Preview Gemini 3 Flash Preview medium Release: 2025-12-17
Score 9.2 10.0
Rank #5 #1
Reliability 10.0 10.0
Consistency 10.0 10.0
Tests Correct
Attempt pass rate 89.5% 100.0%
Flaky tests 0 0
Total Runs 57 57
Cost per result 2.307 1.722
Total Cost $0.393 $0.328
Input Price $1.500 / 1M $0.500 / 1M
Output Price $9.000 / 1M $3.000 / 1M
Output Tokens 1,971 1,985
Reasoning Tokens 36,659 102,122
Response Time (avg) 3.90s 11.43s
Response Time (max) 12.05s 74.66s
Response Time (total) 74.13s 217.10s

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Score vs Total Cost

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Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.09s 171 3,385
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.88s 330 3,216
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 8.22s 431 5,190
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 74.66s 432 48,771
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 12.05s 351 7,807
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 22.42s 351 10,485
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 4.07s 279 3,784
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.43s 279 4,893
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.7 10.0 66.7% 0 5.24s 12 8,047
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 15.27s 12 21,684
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.52s 115 1,144
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.19s 72 1,905
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 9.9 10.0 100.0% 0 2.70s 71 2,855
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.04s 72 2,709
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.7 10.0 66.7% 0 2.38s 295 2,747
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.48s 192 4,647
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.81s 234 455
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 12.60s 234 1,487
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.75s 12 1,245
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.50s 11 2,325

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