head-to-head

DeepSeek: DeepSeek Flash Latest vs Anthropic: Claude Opus 5 (batch)

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

	DeepSeek: DeepSeek Flash Latest	Anthropic: Claude Opus 5 (batch)
Vendor	~deepseek	anthropic
Quality Score	100	100
Benchmark Score	-	87.3
Input Price	$0.10/M	$2.50/M
Output Price	$0.49/M	$12.50/M
Context Window	1,048,576	1,000,000
Max Output	943,718	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	-	83.8

Who wins by task?

Task	DeepSeek: DeepSeek Flash Latest	Anthropic: Claude Opus 5 (batch)
SQL Generation	133	142
Code Review	132	147
Code Completion	131	118
Code Refactoring	136	149
Bug Fixing	136	151
Unit Test Generation	124	134
Code Documentation	131	136
Regex Writing	119	125
CI/CD Pipelines	120	130
Frontend Component Design	122	132
Data Analysis	124	136
CSV / Spreadsheet Cleanup	133	135
ETL Scripting	128	139
JSON Extraction	131	121
Bulk Data Labeling	129	117
OCR / Document Parsing	131	135
Table Extraction from PDFs	131	135
Long-Document Summarization	137	149
Short-Form Summarization	123	117
Blog Post Writing	121	130

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