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StepFun: Step 3.7 Flash vs ByteDance Seed: Seed-2.0-Mini

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

StepFun: Step 3.7 Flash ByteDance Seed: Seed-2.0-Mini
Vendorstepfunbytedance-seed
Quality Score100100
Benchmark Score48.0-
Input Price$0.20/M$0.10/M
Output Price$1.15/M$0.40/M
Context Window256,000262,144
Max Output256,000131,072
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index49.1-
ai_index_agentic35.5-
ai_index_coding61.6-

Who wins by task?

TaskStepFun: Step 3.7 FlashByteDance Seed: Seed-2.0-Mini
SQL Generation 152 131
Code Review 145 126
Code Completion 129 129
Code Refactoring 143 127
Bug Fixing 154 130
Unit Test Generation 138 121
Code Documentation 132 126
Regex Writing 129 119
CI/CD Pipelines 131 117
Frontend Component Design 135 122
Data Analysis 149 124
CSV / Spreadsheet Cleanup 140 128
ETL Scripting 137 122
JSON Extraction 142 131
Bulk Data Labeling 133 129
OCR / Document Parsing 137 128
Table Extraction from PDFs 137 128
Long-Document Summarization 141 129
Short-Form Summarization 128 123
Blog Post Writing 129 119

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

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