head-to-head

Anthropic Claude Sonnet Latest vs OpenAI: GPT-5.4

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-28.

	Anthropic Claude Sonnet Latest	OpenAI: GPT-5.4
Vendor	~anthropic	openai
Quality Score	100	100
Benchmark Score	-	90.4
Input Price	$3.00/M	$2.50/M
Output Price	$15.00/M	$15.00/M
Context Window	1,000,000	1,050,000
Max Output	128,000	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	-	84.8
ai_index_agentic	-	67.8
ai_index_coding	-	100.0
eqbench	-	82.4

Who wins by task?

Task	Anthropic Claude Sonnet Latest	OpenAI: GPT-5.4
SQL Generation	132	174
Code Review	132	175
Code Completion	116	120
Code Refactoring	136	174
Bug Fixing	136	188
Unit Test Generation	124	159
Code Documentation	128	146
Regex Writing	116	136
CI/CD Pipelines	120	149
Frontend Component Design	122	149
Data Analysis	124	173
CSV / Spreadsheet Cleanup	132	157
ETL Scripting	128	161
JSON Extraction	120	137
Bulk Data Labeling	116	122
OCR / Document Parsing	131	149
Table Extraction from PDFs	131	149
Long-Document Summarization	136	168
Short-Form Summarization	112	122
Blog Post Writing	120	144

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