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Google: Gemini 3.5 Flash vs OpenAI: GPT-5 Mini

Last updated at: 2026-06-01

Metric Gemini 3.5 Flash Gemini 3.5 Flash low Release: 2026-05-19 GPT-5 Mini GPT-5 Mini medium Release: 2025-08-07
Score 9.3 7.2
Rank #3 #73
Reliability 10.0 10.0
Consistency 10.0 9.1
Tests Correct
Attempt pass rate 90.0% 61.7%
Flaky tests 0 2
Total Runs 60 60
Cost per result 1.582 1.348
Total Cost $0.285 $0.149
Input Price $1.500 / 1M $0.250 / 1M
Output Price $9.000 / 1M $2.000 / 1M
Output Tokens 2,027 6,723
Reasoning Tokens 23,938 63,082
Response Time (avg) 2.98s 23.75s
Response Time (max) 6.44s 88.15s
Response Time (total) 59.59s 475.03s

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Score vs Total Cost

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Score vs Response Time (avg)

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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 2.52s 209 2,536
GPT-5 Mini 7.1 7.6 66.7% 1 13.86s 1,715 6,378
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 6.8 10.0 50.0% 0 5.54s 452 6,839
GPT-5 Mini 10.0 10.0 100.0% 0 30.74s 580 12,544
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 6.44s 351 3,050
GPT-5 Mini 10.0 10.0 100.0% 0 88.15s 754 11,520
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 1.81s 279 1,164
GPT-5 Mini 10.0 10.0 100.0% 0 12.58s 453 3,200
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 3.39s 12 4,538
GPT-5 Mini 3.6 7.2 22.2% 1 44.63s 293 14,016
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 2.27s 119 916
GPT-5 Mini 4.5 10.0 0.0% 0 13.50s 349 1,856
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 1.86s 71 1,652
GPT-5 Mini 10.0 10.0 100.0% 0 11.59s 310 3,968
Puzzle Solving 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 2.35s 288 2,150
GPT-5 Mini 5.6 9.8 33.3% 0 15.20s 1,622 6,144
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 3.27s 234 403
GPT-5 Mini 10.0 10.0 100.0% 0 18.64s 487 1,600
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 1.88s 12 690
GPT-5 Mini 3.0 10.0 0.0% 0 9.99s 160 1,856

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