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Google: Gemini 3.5 Flash vs OpenAI: GPT-5.4

Gemini 3.5 Flash (high) leads on average score with 9.5 vs 5.8. GPT-5.4 has the lower benchmark cost at $0.397 vs $1.976. GPT-5.4 is faster at 2.07s vs 15.07s, with pass rates of 93.9% vs 34.9%.

Recommended modelGemini 3.5 Flash (high)It has the strongest score in this comparison (9.5) and the best overall balance of cost and response time across all 2 models.

Last updated at: 2026-07-18

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 GPT-5.4 GPT-5.4 none Release: 2026-03-05
Score 9.5 5.8
Rank #2 #135
Reliability 10.0 10.0
Consistency 9.3 9.2
Tests Correct
Attempt pass rate 93.9% 34.9%
Flaky tests 2 2
Total Runs 66 66
Cost per result 9.879 5.663
Total Cost $1.976 $0.397
Input Price $1.500 / 1M $2.500 / 1M
Output Price $9.000 / 1M $15.000 / 1M
Total Input Tokens 107,137 108,632
Output Tokens 8,777 8,321
Reasoning Tokens 192,900 0
Response Time (avg) 15.07s 2.07s
Response Time (max) 145.92s 15.63s
Response Time (total) 331.48s 45.51s

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#2 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 tok

#135 GPT-5.4

none
Cost
$0.026
Time
18.1s
Tokens
1,792 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
GPT-5.4 5.5 10.0 33.3% 0 1.62s 7,305 516 0

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