head-to-head

Anthropic: Claude Haiku Latest vs OpenAI: GPT-5.4

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

	Anthropic: Claude Haiku Latest	OpenAI: GPT-5.4
Vendor	~anthropic	openai
Quality Score	100	100
Benchmark Score	-	80.9
Input Price	$1.00/M	$2.50/M
Output Price	$5.00/M	$15.00/M
Context Window	200,000	1,050,000
Max Output	64,000	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	-	64.3
eqbench	-	82.4

Who wins by task?

Task	Anthropic: Claude Haiku Latest	OpenAI: GPT-5.4
SQL Generation	129	145
Code Review	124	154
Code Completion	114	120
Code Refactoring	124	157
Bug Fixing	128	158
Unit Test Generation	120	137
Code Documentation	122	140
Regex Writing	118	126
CI/CD Pipelines	116	133
Frontend Component Design	122	133
Data Analysis	124	138
CSV / Spreadsheet Cleanup	125	139
ETL Scripting	120	145
JSON Extraction	122	120
Bulk Data Labeling	120	116
OCR / Document Parsing	127	136
Table Extraction from PDFs	127	136
Long-Document Summarization	125	157
Short-Form Summarization	114	117
Blog Post Writing	117	133

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