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	GPT-5.5 OpenAI	Gemini 3.5 Google	Gemini Omni Google	Claude 4.7 Opus Anthropic
Vendor	OpenAI	Google	Google	Anthropic
Family	GPT	Gemini	Gemini	Claude
Release date	2026-04-23	2026-05-20	2026-05-20	2026-04-16
Context window	400,000 tokens	2,000,000 tokens	1,000,000 tokens	1,000,000 tokens
Parameters	—	—	—	—
Modality	text, vision, audio	text, vision, audio, video	text, vision, audio, video	text, vision
License	proprietary	proprietary	proprietary	proprietary
Source	proprietary	proprietary	proprietary	proprietary
Description	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.	Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026.	Multimodal Gemini variant introduced at Google I/O 2026 — unified text, image, audio, and video processing in a single model.	Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle). Optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6.
Links	vendor →	vendor →	vendor →	vendor →
Benchmarks
MMLU-Pro	87.6%	88.9%	—	88.2%
GPQA-D	89.4%	91.2%	—	90.1%
HumanEval	96.8%	—	—	97.4%
Aider	89.7%	—	—	91.2%
AIME-25	94.2%	96.1%	—	93.5%
LiveCB	78.9%	—	—	80.2%
MMMU	78.4%	86.0%	82.5%	79.0%