GPT-2 vs R1 1776

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

	GPT-2	R1 1776
Intelligence index	—	95.4
Developer	OpenAI	Perplexity
Type	LLM	LLM
Access	Open weights	—
Context window	1,024 tokens	—
Input price	—	$0.00 / 1M
Output price	—	$0.00 / 1M
Speed	—	—
Released	February 14, 2019	February 18, 2025
Parameters	1.5B	—
Input modalities	Text	—
Output modalities	Text	—

GPT-2 details R1 1776 details