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Google: Gemini 2.5 Flash vs OpenAI: GPT-5.4 Nano

Last updated at: 2026-03-17

Metric Gemini 2.5 Flash Gemini 2.5 Flash none Release: 2025-06-17 GPT-5.4 Nano GPT-5.4 Nano medium Release: 2026-03-17
Rank #48 #28
Score 5.9 7.4
Consistency 9.1 9.0
Cost per result 0.192 0.769
Total Cost $0.012 $0.077
Tests Correct
Attempt pass rate 41.2% 66.7%
Flaky tests 2 2
Total Runs 51 51
Output Tokens 1,273 2,474
Reasoning Tokens 0 54,516
Response Time (avg) 888ms 11.08s
Response Time (max) 4.39s 94.06s
Response Time (total) 15.10s 188.39s

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Score vs Total Cost

Response Time (avg)

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 2.5 Flash 3.0 10.0 0.0% 0 582ms 102 0
GPT-5.4 Nano 8.3 10.0 75.0% 0 4.52s 683 2,254
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 3.0 10.0 0.0% 0 4.39s 366 0
GPT-5.4 Nano 9.8 10.0 100.0% 0 24.13s 349 5,719
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 652ms 279 0
GPT-5.4 Nano 10.0 10.0 100.0% 0 2.54s 234 516
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 495ms 12 0
GPT-5.4 Nano 5.9 7.2 55.6% 1 38.18s 60 43,325
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 5.0 10.0 0.0% 0 615ms 78 0
GPT-5.4 Nano 4.5 10.0 0.0% 0 4.15s 179 443
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 8.0 6.8 66.7% 1 672ms 70 0
GPT-5.4 Nano 9.8 10.0 100.0% 0 1.88s 95 521
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 5.7 10.0 33.3% 0 576ms 132 0
GPT-5.4 Nano 4.0 7.1 22.2% 1 3.65s 640 1,356
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 1.91s 234 0
GPT-5.4 Nano 10.0 10.0 100.0% 0 7.71s 234 382

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