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 2026-06-17.

	xAI: Grok 4.3	Anthropic Claude Haiku Latest
Vendor	x-ai	~anthropic
Quality Score	100	100
Benchmark Score	75.0	-
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	100.0	-
ai_index_coding	67.7	-

Who wins by task?

Task	xAI: Grok 4.3	Anthropic Claude Haiku Latest
SQL Generation	166	129
Code Review	161	124
Code Completion	120	114
Code Refactoring	159	124
Bug Fixing	176	128
Unit Test Generation	148	120
Code Documentation	141	122
Regex Writing	134	118
CI/CD Pipelines	140	116
Frontend Component Design	142	122
Data Analysis	166	124
CSV / Spreadsheet Cleanup	149	125
ETL Scripting	149	120
JSON Extraction	136	122
Bulk Data Labeling	125	120
OCR / Document Parsing	142	127
Table Extraction from PDFs	142	127
Long-Document Summarization	156	125
Short-Form Summarization	122	114
Blog Post Writing	137	117

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