Grok 4.1 vs R1 1776

xAI vs Perplexity — benchmarks, pricing, and capabilities side by side.

	Grok 4.1	R1 1776
Intelligence index	—	95.4
Developer	xAI	Perplexity
Type	LLM	LLM
Access	API only	—
Context window	256,000 tokens	—
Input price	—	$0.00 / 1M
Output price	—	$0.00 / 1M
Speed	—	—
Released	November 17, 2025	February 18, 2025
Parameters	—	—
Input modalities	Text, Image	—
Output modalities	Text	—

Grok 4.1 details R1 1776 details