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DeepSeek-V4-Pro×

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	DeepSeek-V4-Pro DeepSeek	Grok 4 xAI	Claude 4.6 Sonnet Anthropic	Llama 4 Maverick Meta
Vendor	DeepSeek	xAI	Anthropic	Meta
Family	DeepSeek	Grok	Claude	Llama
Release date	2026-04-22	2025-07-09	2026-02-17	2025-04-05
Context window	1,000,000 tokens	256,000 tokens	1,000,000 tokens	1,000,000 tokens
Parameters	1.6T (49B active)	—	—	400B
Modality	text	text	text, vision	text, vision
License	MIT	proprietary	proprietary	Llama 4 Community License
Source	open weights	proprietary	proprietary	open weights
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.	—	Anthropic's mid-tier flagship — released 12 days after Opus 4.6 and matching most of its capabilities at ~40% the API cost ($3/$15 per 1M tokens). 1M-token context.	Mixture-of-experts open-weight model from Meta.
Links	weights →	vendor →		weights →
Benchmarks
MMLU-Pro	84.2%	82.8%	85.4%	80.5%
GPQA-D	82.4%	87.5%	85.8%	—
HumanEval	95.1%	—	95.9%	—
Aider	80.1%	72.5%	83.6%	—
AIME-25	88.6%	86.1%	87.4%	—
LiveCB	72.4%	65.3%	73.8%	—
MMMU	—	—	—	68.5%