GPT-5.4 vs R1 1776

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

•R1 1776 has the higher intelligence index (95.4 vs 74.9)
•R1 1776 is cheaper ($0.00 vs $2.50 per 1M input)

	GPT-5.4	R1 1776
Intelligence index	74.9	95.4
Developer	OpenAI	Perplexity
Type	LLM	LLM
Access	API only	—
Context window	1,050,000 tokens	—
Input price	$2.50 / 1M	$0.00 / 1M
Output price	$15.00 / 1M	$0.00 / 1M
Speed	84 tok/s	—
Released	March 5, 2026	February 18, 2025
Parameters	—	—
Input modalities	Text, Image	—
Output modalities	Text	—

GPT-5.4 details R1 1776 details