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Google: Gemini 3.5 Flash vs OpenAI: GPT-5.2 Chat

Last updated at: 2026-05-19

Metric Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19 GPT-5.2 Chat GPT-5.2 Chat none Release: 2025-12-11
Score 9.2 7.6
Rank #5 #46
Reliability 10.0 10.0
Consistency 10.0 8.8
Tests Correct
Attempt pass rate 89.5% 71.9%
Flaky tests 0 3
Total Runs 57 57
Cost per result 2.307 2.572
Total Cost $0.393 $0.309
Input Price $1.500 / 1M $1.750 / 1M
Output Price $9.000 / 1M $14.000 / 1M
Output Tokens 1,971 18,585
Reasoning Tokens 36,659 0
Response Time (avg) 3.90s 6.85s
Response Time (max) 12.05s 38.52s
Response Time (total) 74.13s 130.06s

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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
GPT-5.2 Chat 8.7 7.9 91.7% 1 3.40s 1,807 0
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
GPT-5.2 Chat 10.0 10.0 100.0% 0 8.97s 1,345 0
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
GPT-5.2 Chat 10.0 10.0 100.0% 0 9.12s 1,243 0
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
GPT-5.2 Chat 10.0 10.0 100.0% 0 3.05s 980 0
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
GPT-5.2 Chat 5.3 10.0 33.3% 0 17.78s 7,810 0
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
GPT-5.2 Chat 4.4 3.0 33.3% 1 3.20s 335 0
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
GPT-5.2 Chat 7.3 5.9 83.3% 1 5.46s 1,528 0
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
GPT-5.2 Chat 7.7 10.0 66.7% 0 4.42s 1,743 0
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
GPT-5.2 Chat 10.0 10.0 100.0% 0 4.68s 555 0
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
GPT-5.2 Chat 3.0 10.0 0.0% 0 6.89s 1,239 0

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