head-to-head

ByteDance Seed: Seed 2.1 Turbo vs Anthropic: Claude Sonnet 5 (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 Sonnet 5 (batch)
Vendor	bytedance-seed	anthropic
Quality Score	100	100
Benchmark Score	-	91.6
Input Price	$0.50/M	$1.00/M
Output Price	$2.50/M	$5.00/M
Context Window	262,144	1,000,000
Max Output	262,144	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	-	91.2
ai_index_agentic	-	82.0
ai_index_coding	-	100.0

Who wins by task?

Task	ByteDance Seed: Seed 2.1 Turbo	Anthropic: Claude Sonnet 5 (batch)
SQL Generation	130	172
Code Review	126	168
Code Completion	128	120
Code Refactoring	127	165
Bug Fixing	130	182
Unit Test Generation	121	155
Code Documentation	125	143
Regex Writing	119	136
CI/CD Pipelines	117	145
Frontend Component Design	122	147
Data Analysis	124	172
CSV / Spreadsheet Cleanup	128	154
ETL Scripting	122	155
JSON Extraction	131	140
Bulk Data Labeling	129	126
OCR / Document Parsing	128	147
Table Extraction from PDFs	128	147
Long-Document Summarization	129	160
Short-Form Summarization	123	123
Blog Post Writing	118	141

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