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Google: Gemini 2.5 Flash vs OpenAI: GPT-5.2 Chat

Last updated at: 2026-04-16

Metric Gemini 2.5 Flash Gemini 2.5 Flash medium Release: 2025-06-17 GPT-5.2 Chat GPT-5.2 Chat none Release: 2025-12-11
Score 8.2 7.9
Rank #15 #28
Consistency 9.5 8.7
Tests Correct
Attempt pass rate 75.9% 75.9%
Flaky tests 1 3
Total Runs 54 54
Cost per result 2.454 2.424
Total Cost $0.319 $0.291
Input Price $0.300 / 1M $1.750 / 1M
Output Price $2.500 / 1M $14.000 / 1M
Output Tokens 1,898 17,346
Reasoning Tokens 122,273 0
Response Time (avg) 12.12s 6.84s
Response Time (max) 95.48s 38.52s
Response Time (total) 218.12s 123.17s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 8.4 10.0 75.0% 0 6.30s 255 10,233
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 2.5 Flash 10.0 10.0 100.0% 0 16.23s 522 10,350
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 2.5 Flash 10.0 10.0 100.0% 0 28.44s 303 11,922
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 2.5 Flash 10.0 10.0 100.0% 0 4.06s 279 2,325
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 2.5 Flash 5.9 7.2 55.6% 1 37.34s 18 80,702
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 2.5 Flash 4.8 10.0 0.0% 0 4.86s 92 1,899
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 2.5 Flash 9.8 10.0 100.0% 0 2.62s 69 1,203
GPT-5.2 Chat 7.5 6.1 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 2.5 Flash 7.7 10.0 66.7% 0 3.94s 126 2,499
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 2.5 Flash 10.0 10.0 100.0% 0 6.20s 234 1,140
GPT-5.2 Chat 10.0 10.0 100.0% 0 4.68s 555 0

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