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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 medium Release: 2026-03-17 HY3 Preview HY3 Preview high Release: 2026-04-22 Free Available
Score 7.6 8.6
Rank #51 #10
Reliability N/A N/A
Consistency 9.0 9.2
Tests Correct
Attempt pass rate 68.5% 83.3%
Flaky tests 2 2
Total Runs 54 50
Cost per result 0.747 0.000
Total Cost $0.083 $0.000
Input Price $0.200 / 1M $0.000 / 1M
Output Price $1.250 / 1M $0.000 / 1M
Output Tokens 2,946 238,920
Reasoning Tokens 58,132 0
Response Time (avg) 11.21s 55.19s
Response Time (max) 94.06s 149.94s
Response Time (total) 201.80s 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 8.3 10.0 75.0% 0 4.52s 683 2,254
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 10.0 10.0 100.0% 0 13.41s 472 3,616
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 9.8 10.0 100.0% 0 24.13s 349 5,719
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 10.0 10.0 100.0% 0 2.54s 234 516
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 5.9 7.2 55.6% 1 38.18s 60 43,325
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 4.5 10.0 0.0% 0 4.15s 179 443
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 9.8 10.0 100.0% 0 1.88s 95 521
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 4.0 7.1 22.2% 1 3.65s 640 1,356
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 7.71s 234 382
HY3 Preview 10.0 10.0 100.0% 0 78.83s 10,370 0

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