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OpenAI: GPT-5.4 Mini vs HY3 Preview

Last updated at: 2026-04-23

Metric GPT-5.4 Mini GPT-5.4 Mini none Release: 2026-03-17 HY3 Preview HY3 Preview none Release: 2026-04-22 Free Available
Score 5.1 4.7
Rank #93 #101
Consistency 8.6 9.0
Tests Correct
Attempt pass rate 35.2% 27.8%
Flaky tests 3 2
Total Runs 54 54
Cost per result 0.630 0.000
Total Cost $0.032 $0.000
Input Price $0.750 / 1M $0.000 / 1M
Output Price $4.500 / 1M $0.000 / 1M
Output Tokens 2,418 2,639
Reasoning Tokens 0 0
Response Time (avg) 1.17s 13.56s
Response Time (max) 2.52s 35.84s
Response Time (total) 21.01s 230.55s

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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 Mini 3.1 8.1 8.3% 1 929ms 654 0
HY3 Preview 4.8 10.0 25.0% 0 11.10s 770 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 10.0 10.0 100.0% 0 1.19s 333 0
HY3 Preview 2.3 1.1 33.3% 1 4.56s 333 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 3.0 10.0 0.0% 0 2.52s 298 0
HY3 Preview 3.0 10.0 0.0% 0 35.84s 281 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 10.0 10.0 100.0% 0 1.30s 222 0
HY3 Preview 6.5 10.0 50.0% 0 2.85s 117 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 3.5 4.4 33.3% 2 937ms 88 0
HY3 Preview 3.6 7.2 22.2% 1 17.61s 27 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 4.8 10.0 0.0% 0 1.82s 174 0
HY3 Preview 4.1 10.0 0.0% 0 16.07s 150 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 6.3 10.0 50.0% 0 728ms 101 0
HY3 Preview 6.3 10.0 50.0% 0 12.98s 365 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 5.4 10.0 33.3% 0 860ms 293 0
HY3 Preview 3.3 10.0 0.0% 0 4.76s 359 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 3.0 10.0 0.0% 0 2.32s 255 0
HY3 Preview 10.0 10.0 100.0% 0 33.76s 237 0

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