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Google: Gemini 3.8 Flash vs ByteDance Seed: Seed 2.1 Turbo

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-04.

Google: Gemini 3.8 Flash ByteDance Seed: Seed 2.1 Turbo
Vendorgooglebytedance-seed
Quality Score100100
Benchmark Score93.4-
Input Price$0.75/M$0.50/M
Output Price$3.75/M$2.50/M
Context Window1,048,576262,144
Max Output65,536235,929
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index96.8-
ai_index_agentic82.5-
ai_index_coding100.0-

Who wins by task?

TaskGoogle: Gemini 3.8 FlashByteDance Seed: Seed 2.1 Turbo
SQL Generation 173 130
Code Review 169 126
Code Completion 133 128
Code Refactoring 166 127
Bug Fixing 183 130
Unit Test Generation 156 121
Code Documentation 144 125
Regex Writing 137 119
CI/CD Pipelines 146 117
Frontend Component Design 148 122
Data Analysis 173 124
CSV / Spreadsheet Cleanup 154 128
ETL Scripting 156 122
JSON Extraction 148 131
Bulk Data Labeling 134 129
OCR / Document Parsing 147 128
Table Extraction from PDFs 147 128
Long-Document Summarization 162 129
Short-Form Summarization 132 123
Blog Post Writing 142 118

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

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