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 2026-06-18.

	Anthropic Claude Haiku Latest	OpenAI: GPT-5.4
Vendor	~anthropic	openai
Quality Score	100	100
Benchmark Score	-	94.2
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	-	84.8
ai_index_agentic	-	100.0
ai_index_coding	-	94.5
eqbench	-	82.4

Who wins by task?

Task	Anthropic Claude Haiku Latest	OpenAI: GPT-5.4
SQL Generation	129	178
Code Review	124	178
Code Completion	114	120
Code Refactoring	124	175
Bug Fixing	128	194
Unit Test Generation	120	161
Code Documentation	122	147
Regex Writing	118	138
CI/CD Pipelines	116	151
Frontend Component Design	122	151
Data Analysis	124	179
CSV / Spreadsheet Cleanup	125	157
ETL Scripting	120	163
JSON Extraction	122	137
Bulk Data Labeling	120	122
OCR / Document Parsing	127	149
Table Extraction from PDFs	127	149
Long-Document Summarization	125	170
Short-Form Summarization	114	123
Blog Post Writing	117	146

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