head-to-head

Anthropic: Claude Opus 5.5 (batch) vs DeepSeek: DeepSeek V4 Flash Vision Exp

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

	Anthropic: Claude Opus 5.5 (batch)	DeepSeek: DeepSeek V4 Flash Vision Exp
Vendor	anthropic	deepseek
Quality Score	100	100
Benchmark Score	100.0	57.7
Input Price	$2.00/M	$0.22/M
Output Price	$10.00/M	$0.66/M
Context Window	1,000,000	1,048,576
Max Output	128,000	943,718
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	95.1	57.5

Who wins by task?

Task	Anthropic: Claude Opus 5.5 (batch)	DeepSeek: DeepSeek V4 Flash Vision Exp
SQL Generation	144	140
Code Review	150	142
Code Completion	119	133
Code Refactoring	151	145
Bug Fixing	154	146
Unit Test Generation	135	130
Code Documentation	138	137
Regex Writing	127	125
CI/CD Pipelines	131	126
Frontend Component Design	133	128
Data Analysis	138	132
CSV / Spreadsheet Cleanup	136	136
ETL Scripting	141	136
JSON Extraction	121	131
Bulk Data Labeling	118	129
OCR / Document Parsing	135	133
Table Extraction from PDFs	135	133
Long-Document Summarization	152	147
Short-Form Summarization	118	126
Blog Post Writing	132	128

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