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Google: Gemini 2.5 Flash vs OpenAI: GPT-5.4

Last updated at: 2026-05-01

Metric Gemini 2.5 Flash Gemini 2.5 Flash medium Release: 2025-06-17 GPT-5.4 GPT-5.4 medium Release: 2026-03-05
Score 8.2 8.2
Rank #21 #23
Reliability N/A N/A
Consistency 9.5 8.7
Tests Correct
Attempt pass rate 75.9% 79.6%
Flaky tests 1 3
Total Runs 54 54
Cost per result 2.454 6.399
Total Cost $0.319 $0.832
Input Price $0.300 / 1M $2.500 / 1M
Output Price $2.500 / 1M $15.000 / 1M
Output Tokens 1,898 2,169
Reasoning Tokens 122,273 48,732
Response Time (avg) 12.12s 18.63s
Response Time (max) 95.48s 100.41s
Response Time (total) 218.12s 335.26s

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Score vs Total Cost

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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 2.5 Flash 8.4 10.0 75.0% 0 6.30s 255 10,233
GPT-5.4 8.3 10.0 75.0% 0 4.11s 240 1,511
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-5.4 10.0 10.0 100.0% 0 13.03s 389 2,045
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-5.4 10.0 10.0 100.0% 0 20.57s 301 3,543
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-5.4 10.0 10.0 100.0% 0 5.32s 234 804
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-5.4 5.3 7.2 44.4% 1 74.27s 61 34,748
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-5.4 4.7 3.1 33.3% 1 4.92s 145 321
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-5.4 10.0 10.0 100.0% 0 3.11s 93 897
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-5.4 8.2 7.2 88.9% 1 9.13s 442 3,832
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-5.4 10.0 10.0 100.0% 0 13.28s 264 1,031

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