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	DeepSeek-V4-Pro DeepSeek	Qwen3.7-Max Alibaba	DeepSeek-V4-Flash DeepSeek	GPT-5 OpenAI
Vendor	DeepSeek	Alibaba	DeepSeek	OpenAI
Family	DeepSeek	Qwen	DeepSeek	GPT
Release date	2026-04-22	2026-05-20	2026-04-22	2025-08-07
Context window	1,000,000 tokens	1,000,000 tokens	1,000,000 tokens	400,000 tokens
Parameters	1.6T (49B active)	—	284B (13B active)	—
Modality	text	text	text	text, vision, audio
License	MIT	proprietary	MIT	proprietary
Source	open weights	proprietary	open weights	proprietary
Description	DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs.	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.	Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE.	OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026.
Links	weights →	vendor →	weights →	vendor →
Benchmarks
MMLU-Pro	84.2%	83.7%	—	85.1%
GPQA-D	82.4%	83.0%	—	87.3%
HumanEval	95.1%	93.9%	—	95.2%
Aider	80.1%	78.4%	—	85.4%
AIME-25	88.6%	90.4%	—	91.0%
LiveCB	72.4%	71.0%	—	74.5%
MMMU	—	—	—	74.1%