Compare models

Pick up to 4models. Specs render side-by-side. Share the URL — it's stateless.

Comparing agents instead? Switch to agent compare →

Selected

Gemini Omni×

Grok 4×

GPT-5.5×

GPT-5×Clear all

	Gemini Omni Google	Grok 4 xAI	GPT-5.5 OpenAI	GPT-5 OpenAI
Vendor	Google	xAI	OpenAI	OpenAI
Family	Gemini	Grok	GPT	GPT
Release date	2026-05-20	2025-07-09	2026-04-23	2025-08-07
Context window	1,000,000 tokens	256,000 tokens	400,000 tokens	400,000 tokens
Parameters	—	—	—	—
Modality	text, vision, audio, video	text	text, vision, audio	text, vision, audio
License	proprietary	proprietary	proprietary	proprietary
Source	proprietary	proprietary	proprietary	proprietary
Description	Multimodal Gemini variant introduced at Google I/O 2026 — unified text, image, audio, and video processing in a single model.	—	OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning.	OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026.
Links	vendor →	vendor →	vendor →	vendor →
Benchmarks
MMLU-Pro	—	82.8%	87.6%	85.1%
GPQA-D	—	87.5%	89.4%	87.3%
HumanEval	—	—	96.8%	95.2%
Aider	—	72.5%	89.7%	85.4%
AIME-25	—	86.1%	94.2%	91.0%
LiveCB	—	65.3%	78.9%	74.5%
MMMU	82.5%	—	78.4%	74.1%