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

Last updated at: 2026-06-01

Metric GPT-5.4 Nano GPT-5.4 Nano medium Release: 2026-03-17 Step 3.7 Flash Step 3.7 Flash low Release: 2026-05-29
Score 7.2 7.4
Rank #72 #59
Reliability 10.0 10.0
Consistency 8.8 8.7
Tests Correct
Attempt pass rate 63.3% 68.3%
Flaky tests 3 3
Total Runs 60 60
Cost per result 0.900 2.796
Total Cost $0.099 $0.336
Input Price $0.200 / 1M $0.200 / 1M
Output Price $1.250 / 1M $1.150 / 1M
Output Tokens 2,993 285,209
Reasoning Tokens 70,928 0
Response Time (avg) 11.79s 16.06s
Response Time (max) 94.06s 124.75s
Response Time (total) 235.81s 321.11s

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Score vs Total Cost

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Score vs Response Time (avg)

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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
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 Nano 6.8 6.2 66.7% 1 21.10s 495 15,186
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 Nano 9.8 10.0 100.0% 0 24.13s 349 5,719
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 Nano 10.0 10.0 100.0% 0 2.54s 234 516
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 Nano 5.9 7.2 55.6% 1 38.18s 60 43,325
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 Nano 4.5 10.0 0.0% 0 4.15s 179 443
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 Nano 9.8 10.0 100.0% 0 1.88s 95 521
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 Nano 4.1 7.2 22.2% 1 3.79s 594 1,408
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 Nano 10.0 10.0 100.0% 0 7.71s 234 382
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 Nano 3.0 10.0 0.0% 0 4.81s 70 1,174
Step 3.7 Flash 3.0 10.0 0.0% 0 124.75s 134,779 0

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