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OpenAI: GPT-5.4 Nano vs HY3 Preview

Last updated at: 2026-05-01

Metric GPT-5.4 Nano GPT-5.4 Nano none Release: 2026-03-17 HY3 Preview HY3 Preview high Release: 2026-04-22 Free Available
Score 4.6 8.6
Rank #127 #10
Reliability N/A N/A
Consistency 7.4 9.2
Tests Correct
Attempt pass rate 33.3% 83.3%
Flaky tests 6 2
Total Runs 54 50
Cost per result 0.299 0.000
Total Cost $0.009 $0.000
Input Price $0.200 / 1M $0.000 / 1M
Output Price $1.250 / 1M $0.000 / 1M
Output Tokens 2,762 238,920
Reasoning Tokens 0 0
Response Time (avg) 1.40s 55.19s
Response Time (max) 3.84s 149.94s
Response Time (total) 25.14s 938.23s

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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 3.5 8.0 16.7% 1 1.18s 800 0
HY3 Preview 10.0 10.0 100.0% 0 32.69s 26,550 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 7.1 3.7 66.7% 1 1.43s 577 0
HY3 Preview 10.0 10.0 100.0% 0 99.76s 38,167 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 3.0 10.0 0.0% 0 3.84s 280 0
HY3 Preview 10.0 10.0 100.0% 0 113.09s 31,319 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 6.5 10.0 50.0% 0 1.11s 219 0
HY3 Preview 6.5 10.0 50.0% 0 12.11s 4,323 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 2.9 4.4 22.2% 2 926ms 52 0
HY3 Preview 5.3 7.2 44.4% 1 109.04s 87,559 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 3.8 2.5 33.3% 1 1.31s 180 0
HY3 Preview 10.0 10.0 100.0% 0 24.31s 5,490 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 6.3 10.0 50.0% 0 787ms 84 0
HY3 Preview 9.9 10.0 100.0% 0 34.02s 13,331 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 3.7 7.3 22.2% 1 1.29s 348 0
HY3 Preview 9.0 7.9 88.9% 1 28.07s 21,811 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 10.0 10.0 100.0% 0 3.40s 222 0
HY3 Preview 10.0 10.0 100.0% 0 78.83s 10,370 0

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