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OpenAI: GPT-5.4 Mini vs StepFun: Step 3.7 Flash

Last updated at: 2026-05-29

Metric GPT-5.4 Mini GPT-5.4 Mini medium Release: 2026-03-17 Step 3.7 Flash Step 3.7 Flash low Release: 2026-05-29
Score 7.3 7.4
Rank #64 #60
Reliability 10.0 10.0
Consistency 7.9 8.7
Tests Correct
Attempt pass rate 71.7% 68.3%
Flaky tests 5 3
Total Runs 60 60
Cost per result 4.417 2.796
Total Cost $0.486 $0.336
Input Price $0.750 / 1M $0.200 / 1M
Output Price $4.500 / 1M $1.150 / 1M
Output Tokens 2,160 285,209
Reasoning Tokens 100,548 0
Response Time (avg) 22.10s 16.06s
Response Time (max) 138.75s 124.75s
Response Time (total) 442.09s 321.11s

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Score vs Total Cost

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Score vs Response Time (avg)

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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 8.6 7.9 91.7% 1 4.05s 296 2,876
Step 3.7 Flash 8.7 7.9 91.7% 1 4.02s 10,896 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 7.5 6.0 83.3% 1 73.25s 446 32,513
Step 3.7 Flash 10.0 10.0 100.0% 0 9.43s 14,569 0
Combined 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 17.81s 317 4,317
Step 3.7 Flash 10.0 10.0 100.0% 0 7.98s 6,426 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 2.43s 234 650
Step 3.7 Flash 7.3 5.8 83.3% 1 2.29s 2,667 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 4.1 4.4 44.5% 2 65.31s 60 43,286
Step 3.7 Flash 5.3 7.2 44.4% 1 43.31s 104,487 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 4.5 10.0 0.0% 0 3.72s 150 510
Step 3.7 Flash 3.4 9.3 0.0% 0 7.00s 4,604 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 9.8 10.0 100.0% 0 2.13s 96 1,185
Step 3.7 Flash 9.8 10.0 100.0% 0 1.58s 1,857 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 7.8 10.0 66.7% 0 4.37s 278 2,443
Step 3.7 Flash 5.5 9.9 33.3% 0 1.84s 3,564 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 4.7 1.6 66.7% 1 9.62s 251 2,594
Step 3.7 Flash 10.0 10.0 100.0% 0 3.25s 1,360 0
Trivia 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 30.10s 32 10,174
Step 3.7 Flash 3.0 10.0 0.0% 0 124.75s 134,779 0

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