head-to-head

Anthropic: Claude Haiku 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 Haiku Latest	OpenAI: GPT-5.4 Mini
Vendor	~anthropic	openai
Quality Score	100	100
Benchmark Score	-	37.7
Input Price	$1.00/M	$0.75/M
Output Price	$5.00/M	$4.50/M
Context Window	200,000	400,000
Max Output	64,000	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	-	39.7

Who wins by task?

Task	Anthropic: Claude Haiku Latest	OpenAI: GPT-5.4 Mini
SQL Generation	129	138
Code Review	124	139
Code Completion	114	131
Code Refactoring	124	142
Bug Fixing	128	143
Unit Test Generation	120	128
Code Documentation	122	134
Regex Writing	118	122
CI/CD Pipelines	116	124
Frontend Component Design	122	126
Data Analysis	124	130
CSV / Spreadsheet Cleanup	125	135
ETL Scripting	120	133
JSON Extraction	122	130
Bulk Data Labeling	120	128
OCR / Document Parsing	127	133
Table Extraction from PDFs	127	133
Long-Document Summarization	125	143
Short-Form Summarization	114	124
Blog Post Writing	117	126

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