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	GPT-5.5 OpenAI	Qwen3.7-Max Alibaba	DeepSeek-V3.1 DeepSeek	Llama 4 Maverick Meta
Vendor	OpenAI	Alibaba	DeepSeek	Meta
Family	GPT	Qwen	DeepSeek	Llama
Release date	2026-04-23	2026-05-20	2025-08-21	2025-04-05
Context window	400,000 tokens	1,000,000 tokens	128,000 tokens	1,000,000 tokens
Parameters	—	—	671B	400B
Modality	text, vision, audio	text	text	text, vision
License	proprietary	proprietary	MIT	Llama 4 Community License
Source	proprietary	proprietary	open weights	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.	Alibaba's flagship agent model — 1M-token context, extended-thinking mode, 56.6 on the Artificial Analysis Intelligence Index v4.0 (5th overall, #1 Chinese). 50.8% on Terminal-Bench Hard. Designed for long-horizon agent workloads (hundreds-to-thousands of steps). Closed-weight, $2.50/$7.50 per 1M tokens.	Large MoE open-weight model. Predecessor to DeepSeek-V4.	Mixture-of-experts open-weight model from Meta.
Links	vendor →	vendor →	weights →	weights →
Benchmarks
MMLU-Pro	87.6%	83.7%	—	80.5%
GPQA-D	89.4%	83.0%	—	—
HumanEval	96.8%	93.9%	—	—
Aider	89.7%	78.4%	—	—
AIME-25	94.2%	90.4%	—	—
LiveCB	78.9%	71.0%	—	—
MMMU	78.4%	—	—	68.5%