head-to-head

Claude Opus 5 (batch) vs Anthropic: Claude Sonnet 5 (batch)

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

	Claude Opus 5 (batch)	Anthropic: Claude Sonnet 5 (batch)
Vendor	anthropic	anthropic
Quality Score	100	100
Benchmark Score	100.0	91.6
Input Price	$2.50/M	$1.00/M
Output Price	$12.50/M	$5.00/M
Context Window	1,000,000	1,000,000
Max Output	128,000	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	100.0	91.2
ai_index_agentic	97.6	82.0
ai_index_coding	100.0	100.0

Who wins by task?

Task	Claude Opus 5 (batch)	Anthropic: Claude Sonnet 5 (batch)
SQL Generation	175	172
Code Review	171	168
Code Completion	119	120
Code Refactoring	167	165
Bug Fixing	187	182
Unit Test Generation	157	155
Code Documentation	142	143
Regex Writing	136	136
CI/CD Pipelines	147	145
Frontend Component Design	149	147
Data Analysis	177	172
CSV / Spreadsheet Cleanup	154	154
ETL Scripting	157	155
JSON Extraction	138	140
Bulk Data Labeling	123	126
OCR / Document Parsing	148	147
Table Extraction from PDFs	148	147
Long-Document Summarization	162	160
Short-Form Summarization	122	123
Blog Post Writing	142	141

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