head-to-head

Anthropic: Claude Sonnet Latest vs OpenAI: GPT-5.4 Mini

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

	Anthropic: Claude Sonnet Latest	OpenAI: GPT-5.4 Mini
Vendor	~anthropic	openai
Quality Score	100	100
Benchmark Score	-	37.7
Input Price	$2.00/M	$0.75/M
Output Price	$10.00/M	$4.50/M
Context Window	1,000,000	400,000
Max Output	128,000	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	-	39.7

Who wins by task?

Task	Anthropic: Claude Sonnet Latest	OpenAI: GPT-5.4 Mini
SQL Generation	132	138
Code Review	132	139
Code Completion	117	131
Code Refactoring	136	142
Bug Fixing	136	143
Unit Test Generation	124	128
Code Documentation	129	134
Regex Writing	117	122
CI/CD Pipelines	120	124
Frontend Component Design	122	126
Data Analysis	124	130
CSV / Spreadsheet Cleanup	132	135
ETL Scripting	128	133
JSON Extraction	121	130
Bulk Data Labeling	118	128
OCR / Document Parsing	131	133
Table Extraction from PDFs	131	133
Long-Document Summarization	136	143
Short-Form Summarization	113	124
Blog Post Writing	120	126

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