Gemma 2 vs GPT-5 Pro

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

•GPT-5 Pro has a larger context window (400K)

	Gemma 2	GPT-5 Pro
Intelligence index	—	88.4
Developer	Google	OpenAI
Type	LLM	LLM
Access	Open weights	API only
Context window	8,192 tokens	400,000 tokens
Input price	—	$15.00 / 1M
Output price	—	$120.00 / 1M
Speed	—	—
Released	June 27, 2024	October 6, 2025
Parameters	27B	—
Input modalities	Text	Text, Image
Output modalities	Text	Text

Gemma 2 details GPT-5 Pro details