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Qwen: Qwen3.5-9B vs ByteDance Seed: Seed-2.0-Mini

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-22.

Qwen: Qwen3.5-9B ByteDance Seed: Seed-2.0-Mini
Vendorqwenbytedance-seed
Quality Score100100
Benchmark Score40.0-
Input Price$0.10/M$0.10/M
Output Price$0.15/M$0.40/M
Context Window256,000262,144
Max Output32,768131,072
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index41.2-
ai_index_coding47.3-

Who wins by task?

TaskQwen: Qwen3.5-9BByteDance Seed: Seed-2.0-Mini
SQL Generation 144 131
Code Review 139 126
Code Completion 129 129
Code Refactoring 138 127
Bug Fixing 143 130
Unit Test Generation 132 121
Code Documentation 130 126
Regex Writing 126 119
CI/CD Pipelines 126 117
Frontend Component Design 131 122
Data Analysis 138 124
CSV / Spreadsheet Cleanup 137 128
ETL Scripting 132 122
JSON Extraction 139 131
Bulk Data Labeling 132 129
OCR / Document Parsing 134 128
Table Extraction from PDFs 134 128
Long-Document Summarization 137 129
Short-Form Summarization 127 123
Blog Post Writing 125 119

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

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