head-to-head

Anthropic: Claude Sonnet 5 vs Anthropic: Claude Haiku Latest

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

	Anthropic: Claude Sonnet 5	Anthropic: Claude Haiku Latest
Vendor	anthropic	~anthropic
Quality Score	100	100
Benchmark Score	63.9	-
Input Price	$2.00/M	$1.00/M
Output Price	$10.00/M	$5.00/M
Context Window	1,000,000	200,000
Max Output	128,000	64,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	63.0	-

Who wins by task?

Task	Anthropic: Claude Sonnet 5	Anthropic: Claude Haiku Latest
SQL Generation	140	129
Code Review	144	124
Code Completion	118	114
Code Refactoring	146	124
Bug Fixing	148	128
Unit Test Generation	131	120
Code Documentation	135	122
Regex Writing	123	118
CI/CD Pipelines	127	116
Frontend Component Design	129	122
Data Analysis	133	124
CSV / Spreadsheet Cleanup	135	125
ETL Scripting	136	120
JSON Extraction	121	122
Bulk Data Labeling	118	120
OCR / Document Parsing	134	127
Table Extraction from PDFs	134	127
Long-Document Summarization	146	125
Short-Form Summarization	116	114
Blog Post Writing	128	117

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