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OpenAI: GPT-5.4 vs HY3 Preview

Last updated at: 2026-04-23

Metric GPT-5.4 GPT-5.4 medium Release: 2026-03-05 HY3 Preview HY3 Preview low Release: 2026-04-22 Free Available
Score 8.2 8.1
Rank #17 #22
Consistency 8.7 9.5
Tests Correct
Attempt pass rate 79.6% 75.9%
Flaky tests 3 1
Total Runs 54 50
Cost per result 6.399 0.000
Total Cost $0.832 $0.000
Input Price $2.500 / 1M $0.000 / 1M
Output Price $15.000 / 1M $0.000 / 1M
Output Tokens 2,169 65,778
Reasoning Tokens 48,732 0
Response Time (avg) 18.63s 23.98s
Response Time (max) 100.41s 78.74s
Response Time (total) 335.26s 407.72s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 8.3 10.0 75.0% 0 4.11s 240 1,511
HY3 Preview 10.0 10.0 100.0% 0 16.61s 7,905 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 13.03s 389 2,045
HY3 Preview 10.0 10.0 100.0% 0 27.94s 7,907 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 20.57s 301 3,543
HY3 Preview 10.0 10.0 100.0% 0 78.74s 12,975 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 5.32s 234 804
HY3 Preview 6.5 10.0 50.0% 0 5.85s 1,022 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 5.3 7.2 44.4% 1 74.27s 61 34,748
HY3 Preview 5.9 7.2 55.6% 1 40.44s 23,121 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 4.7 3.1 33.3% 1 4.92s 145 321
HY3 Preview 10.0 10.0 100.0% 0 16.44s 2,185 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 3.11s 93 897
HY3 Preview 10.0 10.0 100.0% 0 15.98s 2,475 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 8.2 7.2 88.9% 1 9.13s 442 3,832
HY3 Preview 5.3 10.0 33.3% 0 13.73s 6,985 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 13.28s 264 1,031
HY3 Preview 10.0 10.0 100.0% 0 17.84s 1,203 0

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