head-to-head

xAI: Grok 4.3 vs Anthropic Claude Haiku Latest

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-22.

	xAI: Grok 4.3	Anthropic Claude Haiku Latest
Vendor	x-ai	~anthropic
Quality Score	100	100
Benchmark Score	57.7	-
Input Price	$1.25/M	$1.00/M
Output Price	$2.50/M	$5.00/M
Context Window	1,000,000	200,000
Max Output	-	64,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	62.0	-
ai_index_agentic	39.8	-
ai_index_coding	69.7	-

Who wins by task?

Task	xAI: Grok 4.3	Anthropic Claude Haiku Latest
SQL Generation	158	129
Code Review	155	124
Code Completion	120	114
Code Refactoring	155	124
Bug Fixing	164	128
Unit Test Generation	144	120
Code Documentation	139	122
Regex Writing	130	118
CI/CD Pipelines	136	116
Frontend Component Design	138	122
Data Analysis	153	124
CSV / Spreadsheet Cleanup	147	125
ETL Scripting	145	120
JSON Extraction	134	122
Bulk Data Labeling	124	120
OCR / Document Parsing	141	127
Table Extraction from PDFs	141	127
Long-Document Summarization	152	125
Short-Form Summarization	120	114
Blog Post Writing	134	117

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