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	GPT-5.5 OpenAI	Claude 4.7 Opus Anthropic	Gemini Omni Google	Qwen3.6-27B Alibaba
Vendor	OpenAI	Anthropic	Google	Alibaba
Family	GPT	Claude	Gemini	Qwen
Release date	2026-04-23	2026-04-16	2026-05-20	2026-04-22
Context window	400,000 tokens	1,000,000 tokens	1,000,000 tokens	262,144 tokens
Parameters	—	—	—	27B (dense)
Modality	text, vision, audio	text, vision	text, vision, audio, video	text, vision, video
License	proprietary	proprietary	proprietary	Apache-2.0
Source	proprietary	proprietary	proprietary	open weights
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.	Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle).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.	Multimodal Gemini variant introduced at Google I/O 2026 — unified text, image, audio, and video processing in a single model.	Alibaba's first dense open-weight in the 3.6 family. Strong agentic-coding scores (77.2 SWE-bench Verified, matching Claude 4.5 Opus on Terminal-Bench 2.0). Supports 201 languages and multimodal text/image/video input.
Links	vendor →	vendor →	vendor →	weights →
Benchmarks
MMLU-Pro	87.6%	88.2%	—	78.9%
GPQA-D	89.4%	90.1%	—	—
HumanEval	96.8%	97.4%	—	91.5%
Aider	89.7%	91.2%	—	70.2%
AIME-25	94.2%	93.5%	—	—
LiveCB	78.9%	80.2%	—	—
MMMU	78.4%	79.0%	82.5%	70.3%