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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 2026-05-31.

StepFun: Step 3.7 Flash Qwen: Qwen3.5-9B
Vendorstepfunqwen
Quality Score100100
Input Price$0.20/M$0.04/M
Output Price$1.15/M$0.15/M
Context Window256,000262,144
Max Output256,00081,920
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--

Who wins by task?

TaskStepFun: Step 3.7 FlashQwen: Qwen3.5-9B
SQL Generation 131 131
Code Review 126 126
Code Completion 128 129
Code Refactoring 127 127
Bug Fixing 130 130
Unit Test Generation 121 121
Code Documentation 126 126
Regex Writing 119 120
CI/CD Pipelines 117 117
CSV / Spreadsheet Cleanup 128 128
ETL Scripting 122 122
JSON Extraction 131 132
Bulk Data Labeling 129 129
OCR / Document Parsing 128 128
Table Extraction from PDFs 128 128
Long-Document Summarization 129 129
Short-Form Summarization 123 124
Blog Post Writing 119 119

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

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