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GPT-5.3 Chat vs GPT-5.4 Nano (medium)

The average score is effectively tied at 7.5 vs 7.5. GPT-5.4 Nano (medium) has the lower benchmark cost at $0.138 vs $0.571. GPT-5.3 Chat is faster at 6.88s vs 13.24s, with pass rates of 68.2% vs 65.2%.

Last updated at: 2026-07-28

Rank
#63
Total Output Tokens
30,854
Response Time (avg)
6.88s
Total Cost
$0.571
Rank
#62
Total Output Tokens
97,122
Response Time (avg)
13.24s
Total Cost
$0.138
Recommended model GPT-5.4 Nano (medium)

It has the best score here (7.5), while costing about 4.1x less than GPT-5.3 Chat.

Detailed comparison

Metric GPT-5.3 Chat GPT-5.3 Chat none Release: 2026-03-03 GPT-5.4 Nano GPT-5.4 Nano medium Release: 2026-03-17
Score 7.5 7.5
Rank #63 #62
Reliability 10.0 10.0
Consistency 8.2 8.5
Tests Correct
Attempt pass rate 68.2% 65.2%
Flaky tests 5 4
Total Runs 66 66
Cost per result 4.387 1.150
Total Cost $0.571 $0.138
Input Price $1.750 / 1M $0.200 / 1M
Output Price $14.000 / 1M $1.250 / 1M
Total Input Tokens 78,990 82,819
Output Tokens 30,854 7,100
Reasoning Tokens 0 90,022
Response Time (avg) 6.88s 13.24s
Response Time (max) 18.33s 94.06s
Response Time (total) 151.31s 291.33s

Model generation showcase

Hamster playing table tennis

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

#63 GPT-5.3 Chat

none
Cost
$0.008
Time
8.1s
Tokens
634 tok

#62 GPT-5.4 Nano

medium
Cost
$0.007
Time
24.6s
Tokens
4,943 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-5.3 Chat 5.6 4.7 55.6% 2 10.52s 7,302 6,632 0
GPT-5.4 Nano 6.1 4.7 66.7% 2 19.12s 7,305 516 20,778

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