head-to-head

Anthropic: Claude Sonnet 5 (batch) vs Anthropic: Claude Opus 4.8 (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-30.

	Anthropic: Claude Sonnet 5 (batch)	Anthropic: Claude Opus 4.8 (batch)
Vendor	anthropic	anthropic
Quality Score	100	100
Benchmark Score	90.4	94.3
Input Price	$1.00/M	$2.50/M
Output Price	$5.00/M	$12.50/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	88.0	91.9
ai_index_agentic	77.0	77.8
ai_index_coding	100.0	100.0
eqbench	-	83.3

Who wins by task?

Task	Anthropic: Claude Sonnet 5 (batch)	Anthropic: Claude Opus 4.8 (batch)
SQL Generation	171	177
Code Review	167	178
Code Completion	120	121
Code Refactoring	164	176
Bug Fixing	180	191
Unit Test Generation	154	161
Code Documentation	143	148
Regex Writing	136	138
CI/CD Pipelines	144	151
Frontend Component Design	146	150
Data Analysis	171	176
CSV / Spreadsheet Cleanup	154	158
ETL Scripting	154	163
JSON Extraction	140	138
Bulk Data Labeling	126	123
OCR / Document Parsing	146	149
Table Extraction from PDFs	146	149
Long-Document Summarization	160	170
Short-Form Summarization	123	123
Blog Post Writing	140	146

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