The Open Weights
LatestModelsLeaderboardsCompanies
Subscribe
The Open Weights

The daily record of open-source AI. New model releases, leaderboards, and what's coming next — written for people who ship.

Refreshed every 12 hours

Discover

  • Latest releases
  • New today
  • Trending models

Browse

  • All models
  • Companies
  • Categories
  • Leaderboards

About

  • About
  • Editorial policy
  • Hardware estimates
  • RSS feed
  • llms.txt
  • Newsletter

© 2026 The Open Weights. An independent publication.

PrivacyTermsSMSAggregated by Claude · curated by humans.
LatestDeepSeekV4-Pro
DeepSeekText / LLM

DeepSeek Releases V4-Pro, an Open MoE Contender

The new flagship model combines a Mixture-of-Experts architecture with a permissive MIT license, positioning it for wide commercial adoption.

Apr 22, 2026
Major releaseMIT
DeepSeek-V4-Pro

AI research company DeepSeek has released DeepSeek-V4-Pro, a significant new open-source model aimed at high-performance reasoning, coding, and text generation. The model enters a competitive field with a compelling combination of advanced architecture and an unrestrictive license.

Technically, DeepSeek-V4-Pro is a Mixture-of-Experts (MoE) model, an architecture known for its computational efficiency during inference. The release also utilizes fp8 precision for its weights, a format that can further improve performance and reduce memory usage without a significant loss in accuracy, making it more accessible for developers to run on consumer-grade hardware.

Why the License Matters

What truly sets DeepSeek-V4-Pro apart in the current landscape is its license. The model is released under the MIT License, one of the most permissive open-source licenses available. This allows for unrestricted use, modification, and distribution, including for commercial applications, without the copyleft provisions or use-case restrictions seen in other popular model releases. This choice signals a strong commitment to fostering a truly open and commercially viable ecosystem around the model.

This combination of a powerful MoE architecture and a fully permissive license makes DeepSeek-V4-Pro a noteworthy option for startups and established companies alike looking to build on open foundations. The model is available now on Hugging Face for researchers and developers to explore.

Sources

  • deepseek-ai/DeepSeek-V4-Pro

    Hugging Face

    Visit
OlderDeepSeek Releases V4-Flash, a Fast MIT-Licensed MoE ModelDeepSeek · Text / LLM · 6 months agoNewerLLaDA2.0-Uni: A Unified MoE for Vision TasksinclusionAI · Any-to-Any · 6 months ago

Get the model

Hugging Face

Specs

Active params49B active
Context window1.0M tokens
Size1.6 TB
PrecisionINT8
ArchitectureDeepseekV4ForCausalLM
LicenseMIT
Downloads367.5K
Likes5.7K

Can you run it?

Datacenter only — about 962 GB even at 4-bit.

  • FP8 (as published)

    Multi-node cluster

    1.6 TB
  • 4-bit

    Multi-node cluster

    962 GB
Your machine
GGUF builds
  • Mixture-of-experts: all 1600B parameters must be resident even though only 49B are active per token — active count affects speed, not memory.
  • KV cache sized for 8,192 tokens of context; longer prompts need proportionally more.

Based on Hugging Face weights metadata. Assumes an 8K context and ~1 GB runtime overhead; actual needs vary. How we estimate


Modalities

Text / LLMReasoningCode
2 versions — view changelog

The Weekly Weights

Every open release that mattered, one email a week.

0 comments

No comments yet. Be the first to weigh in.

More from DeepSeek

All DeepSeek releases →
DeepSeek-V4.1-Flash (1017)
DeepSeek/Vision-LanguageDatacenter

DeepSeek V4.1-Flash Adds Vision and Reasoning

The new MIT-licensed checkpoint folds image understanding and reasoning into DeepSeek's fast, mixture-of-experts Flash line.

Oct 17, 2026
DeepSeek-V4-Flash-Vision-Exp
DeepSeek/Vision-LanguageMulti-GPU server

DeepSeek adds vision to its V4 Flash line

An experimental, MIT-licensed vision-language model brings image understanding to DeepSeek's fast V4 Flash architecture.

Aug 31, 2026
DeepSeek-V4-Pro-0813
DeepSeek/Text / LLMDatacenter

DeepSeek Releases V4-Pro-0813 With Open Weights

The Chinese lab pushes a higher-capability checkpoint of its V4 line to Hugging Face under a permissive MIT license.

Aug 13, 2026

More in Text / LLM

All Text / LLM →
IBM/Any-to-Any

IBM's Granite Switch Treats Models Like Software

A new Apache-2.0 release reframes enterprise LLMs as components you can swap and update in place.

Oct 29, 2026
Mistral Large 4 (1T-A52B)
Mistral AI/Text / LLMDatacenter

Mistral Large 4 Arrives as a 1T-Parameter MoE

The new flagship pairs a trillion total parameters with 52B active per token and adds vision alongside multilingual text.

Oct 29, 2026
Nanbeige4.3-33B
Nanbeige/Text / LLMConsumer GPU

Nanbeige 4.3 Arrives as a 33B Bilingual Model

A dense English–Chinese language model lands under Apache 2.0, aimed at teams that want permissive licensing at mid-size scale.

Oct 24, 2026