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OpenAI: GPT-5.4 vs OpenAI: GPT-5 Nano

GPT-5 Nano (medium) leads on average score with 6.1 vs 5.8. GPT-5 Nano (medium) has the lower benchmark cost at $0.114 vs $0.397. GPT-5.4 is faster at 2.07s vs 54.87s, with pass rates of 34.9% vs 56.1%.

Recommended modelGPT-5 Nano (medium)It has the best score here (6.1), while costing about 3.5x less than GPT-5.4.

Last updated at: 2026-07-18

Metric GPT-5.4 GPT-5.4 none Release: 2026-03-05 GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07
Score 5.8 6.1
Rank #135 #124
Reliability 10.0 10.0
Consistency 9.2 7.0
Tests Correct
Attempt pass rate 34.9% 56.1%
Flaky tests 2 8
Total Runs 66 66
Cost per result 5.663 1.267
Total Cost $0.397 $0.114
Input Price $2.500 / 1M $0.050 / 1M
Output Price $15.000 / 1M $0.400 / 1M
Total Input Tokens 108,632 94,935
Output Tokens 8,321 12,042
Reasoning Tokens 0 261,056
Response Time (avg) 2.07s 54.87s
Response Time (max) 15.63s 227.89s
Response Time (total) 45.51s 822.99s

Hamster playing table tennis

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

#135 GPT-5.4

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

#124 GPT-5 Nano

medium
Cost
$0.006
Time
108.5s
Tokens
13,209 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
GPT-5.4 5.5 10.0 33.3% 0 1.62s 7,305 516 0
GPT-5 Nano 7.0 7.7 55.6% 1 41.62s 7,305 740 41,152

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