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	Gemini 3 Pro Google	Claude 4.8 Opus Anthropic	Gemini Omni Google	GPT-5 OpenAI
Vendor	Google	Anthropic	Google	OpenAI
Family	Gemini	Claude	Gemini	GPT
Release date	2026-04-22	2026-05-28	2026-05-20	2025-08-07
Context window	2,000,000 tokens	1,000,000 tokens	1,000,000 tokens	400,000 tokens
Parameters	—	—	—	—
Modality	text, vision, audio, video	text, vision	text, vision, audio, video	text, vision, audio
License	proprietary	proprietary	proprietary	proprietary
Source	proprietary	proprietary	proprietary	proprietary
Description	Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers.	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.	Multimodal Gemini variant introduced at Google I/O 2026 — unified text, image, audio, and video processing in a single model.	OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026.
Links	vendor →	vendor →	vendor →	vendor →
Benchmarks
MMLU-Pro	87.1%	—	—	85.1%
GPQA-D	88.6%	—	—	87.3%
HumanEval	96.5%	—	—	95.2%
Aider	84.8%	—	—	85.4%
AIME-25	92.8%	—	—	91.0%
LiveCB	76.1%	—	—	74.5%
MMMU	84.3%	—	82.5%	74.1%