head-to-head

xAI: Grok Latest vs Anthropic: Claude Sonnet 5 (batch)

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

	xAI: Grok Latest	Anthropic: Claude Sonnet 5 (batch)
Vendor	~x-ai	anthropic
Quality Score	100	100
Benchmark Score	5.8	63.9
Input Price	$1.60/M	$1.00/M
Output Price	$4.80/M	$5.00/M
Context Window	500,000	1,000,000
Max Output	450,000	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	11.4	63.0

Who wins by task?

Task	xAI: Grok Latest	Anthropic: Claude Sonnet 5 (batch)
SQL Generation	134	141
Code Review	134	144
Code Completion	118	120
Code Refactoring	137	146
Bug Fixing	138	148
Unit Test Generation	125	131
Code Documentation	131	136
Regex Writing	119	125
CI/CD Pipelines	121	127
Frontend Component Design	123	129
Data Analysis	125	133
CSV / Spreadsheet Cleanup	133	135
ETL Scripting	129	136
JSON Extraction	122	122
Bulk Data Labeling	120	120
OCR / Document Parsing	131	134
Table Extraction from PDFs	131	134
Long-Document Summarization	139	147
Short-Form Summarization	115	118
Blog Post Writing	122	129

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