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Google: Gemini 3.5 Flash vs OpenAI: GPT-5.4

Last updated at: 2026-05-22

Metric Gemini 3.5 Flash Gemini 3.5 Flash low Release: 2026-05-19 GPT-5.4 GPT-5.4 medium Release: 2026-03-05
Score 9.3 7.9
Rank #3 #27
Reliability 10.0 10.0
Consistency 10.0 8.5
Tests Correct
Attempt pass rate 90.0% 75.0%
Flaky tests 0 4
Total Runs 60 60
Cost per result 1.582 8.767
Total Cost $0.285 $1.140
Input Price $1.500 / 1M $2.500 / 1M
Output Price $9.000 / 1M $15.000 / 1M
Output Tokens 2,027 2,222
Reasoning Tokens 23,938 68,503
Response Time (avg) 2.98s 22.31s
Response Time (max) 6.44s 100.41s
Response Time (total) 59.59s 446.15s

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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 2.52s 209 2,536
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 3.5 Flash 6.8 10.0 50.0% 0 5.54s 452 6,839
GPT-5.4 8.2 6.7 83.3% 1 54.98s 412 19,995
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-5.4 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 3.5 Flash 10.0 10.0 100.0% 0 1.81s 279 1,164
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 3.5 Flash 7.7 10.0 66.7% 0 3.39s 12 4,538
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 3.5 Flash 10.0 10.0 100.0% 0 2.27s 119 916
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 3.5 Flash 9.9 10.0 100.0% 0 1.86s 71 1,652
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 3.5 Flash 10.0 10.0 100.0% 0 2.35s 288 2,150
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 3.5 Flash 10.0 10.0 100.0% 0 3.27s 234 403
GPT-5.4 10.0 10.0 100.0% 0 13.28s 264 1,031
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-5.4 3.0 10.0 0.0% 0 13.95s 30 1,821

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