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Gemini Omni×

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	Gemini Omni Google	GPT-5.5 OpenAI	Claude 4.8 Opus Anthropic	Mistral Large 2 Mistral
Vendor	Google	OpenAI	Anthropic	Mistral
Family	Gemini	GPT	Claude	Mistral
Release date	2026-05-20	2026-04-23	2026-05-28	2024-07-24
Context window	1,000,000 tokens	400,000 tokens	1,000,000 tokens	128,000 tokens
Parameters	—	—	—	123B
Modality	text, vision, audio, video	text, vision, audio	text, vision	text
License	proprietary	proprietary	proprietary	Mistral Research License
Source	proprietary	proprietary	proprietary	open weights
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.	Anthropic's flagship hybrid-reasoning model — Opus 4.8 pushes coding and AI-agent workflows further (agentic coding 69.2% vs 64.3% on 4.7; multidisciplinary reasoning 57.9% vs 54.7%). 1M-token context, $5/$25 per MTok pricing held flat from Opus 4.7. Introduces Dynamic Workflows for Claude Code (research preview). GA on Anthropic API (`claude-opus-4-8`), AWS Bedrock, Google Vertex, Microsoft Foundry, and GitHub Copilot.	Large text-only Mistral model with a 128K context window and 123B parameters, tuned for strong instruction following and long-context reasoning. Mistral's flagship open-weights release in the Large 2 line.
Links	vendor →	vendor →	vendor →	vendor →weights →
Benchmarks
MMLU-Pro	—	87.6%	—	—
GPQA-D	—	89.4%	—	—
HumanEval	—	96.8%	—	89.0%
Aider	—	89.7%	—	—
AIME-25	—	94.2%	—	—
LiveCB	—	78.9%	—	—
MMMU	82.5%	78.4%	—	—