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StepFun: Step 3.7 Flash vs Qwen: Qwen3.5-9B

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

StepFun: Step 3.7 Flash Qwen: Qwen3.5-9B
Vendorstepfunqwen
Quality Score100100
Benchmark Score29.118.3
Input Price$0.20/M$0.10/M
Output Price$1.15/M$0.15/M
Context Window262,144262,144
Max Output230,40032,768
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index32.122.5

Who wins by task?

TaskStepFun: Step 3.7 FlashQwen: Qwen3.5-9B
SQL Generation 135 133
Code Review 132 130
Code Refactoring 132 131
Bug Fixing 136 134
Unit Test Generation 125 123
Code Documentation 129 128
Regex Writing 122 122
CI/CD Pipelines 121 119
Frontend Component Design 125 124
Data Analysis 128 127
CSV / Spreadsheet Cleanup 129 129
ETL Scripting 127 125
JSON Extraction 131 131
Bulk Data Labeling 129 129
OCR / Document Parsing 129 129
Table Extraction from PDFs 129 129
Long-Document Summarization 134 133
Short-Form Summarization 125 125
Blog Post Writing 123 121

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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