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

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-12.

StepFun: Step 3.7 Flash ByteDance Seed: Seed-2.0-Lite
Vendorstepfunbytedance-seed
Quality Score100100
Benchmark Score74.4-
Input Price$0.20/M$0.25/M
Output Price$1.15/M$2.00/M
Context Window256,000262,144
Max Output256,000131,072
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index70.3-
ai_index_agentic98.2-
ai_index_coding61.2-

Who wins by task?

TaskStepFun: Step 3.7 FlashByteDance Seed: Seed-2.0-Lite
SQL Generation 163 131
Code Review 156 126
Code Completion 130 128
Code Refactoring 151 127
Bug Fixing 171 130
Unit Test Generation 146 121
Code Documentation 136 126
Regex Writing 135 119
CI/CD Pipelines 137 117
Frontend Component Design 142 122
Data Analysis 166 124
CSV / Spreadsheet Cleanup 143 128
ETL Scripting 144 122
JSON Extraction 143 131
Bulk Data Labeling 133 129
OCR / Document Parsing 139 128
Table Extraction from PDFs 139 128
Long-Document Summarization 148 129
Short-Form Summarization 131 123
Blog Post Writing 135 119

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

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