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ByteDance Seed: Seed 2.1 Turbo vs Anthropic: Claude Opus 4.8 (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-13.

ByteDance Seed: Seed 2.1 Turbo Anthropic: Claude Opus 4.8 (batch)
Vendorbytedance-seedanthropic
Quality Score100100
Benchmark Score-94.7
Input Price$0.50/M$2.50/M
Output Price$2.50/M$12.50/M
Context Window262,1441,000,000
Max Output262,144128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index-94.6
ai_index_agentic-81.5
ai_index_coding-100.0
eqbench-83.3

Who wins by task?

TaskByteDance Seed: Seed 2.1 TurboAnthropic: Claude Opus 4.8 (batch)
SQL Generation 130 178
Code Review 126 179
Code Completion 128 121
Code Refactoring 127 176
Bug Fixing 130 193
Unit Test Generation 121 161
Code Documentation 125 148
Regex Writing 119 138
CI/CD Pipelines 117 151
Frontend Component Design 122 151
Data Analysis 124 178
CSV / Spreadsheet Cleanup 128 158
ETL Scripting 122 164
JSON Extraction 131 138
Bulk Data Labeling 129 123
OCR / Document Parsing 128 149
Table Extraction from PDFs 128 149
Long-Document Summarization 129 171
Short-Form Summarization 123 123
Blog Post Writing 118 146

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

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