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OpenAI: GPT-5.4 vs StepFun: Step 3.7 Flash

Last updated at: 2026-06-03

Metric GPT-5.4 GPT-5.4 medium Release: 2026-03-05 Step 3.7 Flash Step 3.7 Flash low Release: 2026-05-29
Score 7.9 7.4
Rank #27 #56
Reliability 10.0 10.0
Consistency 8.5 8.7
Tests Correct
Attempt pass rate 75.0% 68.3%
Flaky tests 4 3
Total Runs 60 60
Cost per result 8.765 2.796
Total Cost $1.140 $0.336
Input Price $2.500 / 1M $0.200 / 1M
Output Price $15.000 / 1M $1.150 / 1M
Total Input Tokens 31,489 37,458
Output Tokens 2,221 285,209
Reasoning Tokens 68,486 0
Response Time (avg) 22.31s 16.06s
Response Time (max) 100.41s 124.75s
Response Time (total) 446.17s 321.11s

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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) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 8.3 10.0 75.0% 0 4.11s 606 240 1,511
Step 3.7 Flash 8.7 7.9 91.7% 1 4.02s 756 10,896 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 8.2 6.7 83.3% 1 54.98s 4,686 412 19,995
Step 3.7 Flash 10.0 10.0 100.0% 0 9.43s 4,794 14,569 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 20.57s 11,019 301 3,543
Step 3.7 Flash 10.0 10.0 100.0% 0 7.98s 13,683 6,426 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 5.32s 7,140 234 804
Step 3.7 Flash 7.3 5.8 83.3% 1 2.29s 7,398 2,667 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 5.3 7.2 44.4% 1 74.27s 619 61 34,748
Step 3.7 Flash 5.3 7.2 44.4% 1 43.31s 828 104,487 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 4.7 3.1 33.3% 1 4.92s 477 145 321
Step 3.7 Flash 3.4 9.3 0.0% 0 7.00s 525 4,604 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 3.11s 660 93 897
Step 3.7 Flash 9.8 10.0 100.0% 0 1.58s 735 1,857 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 8.2 7.2 88.9% 1 9.14s 642 441 3,815
Step 3.7 Flash 5.5 9.9 33.3% 0 1.84s 756 3,564 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 10.0 10.0 100.0% 0 13.28s 5,445 264 1,031
Step 3.7 Flash 10.0 10.0 100.0% 0 3.25s 7,746 1,360 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 3.0 10.0 0.0% 0 13.95s 195 30 1,821
Step 3.7 Flash 3.0 10.0 0.0% 0 124.75s 237 134,779 0

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