DeepSeek V4.1 Flash
An open-weight model for reasoning, coding, agents, and image understanding. DeepSeek V4.1 Flash combines a 552B backbone with sparse activation and up to one million tokens of context. Choose the original checkpoint or a community uncensored variant below.
What do you want to do?
Choose a task. Get the software, files, settings, and steps to run it.
Review security with DeepSeek V4.1 Flash and Hermes
Connect Hermes to an uncensored DeepSeek V4.1 Flash API, review your own code, and save a report with evidence and suggested fixes. Choose Venice or Experiential Labs; no GPU rental is required.
Run DeepSeek V4.1 Flash Uncensored with Strata
Run AtomicChat’s IQ2_XXS backbone with ISTA’s separate Engram table through Strata on Windows, Apple Silicon Mac, Linux or RunPod. Includes separate copyable commands, hardware guidance, browser verification and local/cloud API connections for tools.
Open a guide for its software, hardware requirements, and setup steps.
Uncensored versions
DeepSeek V4.1 Flash · Uncensored FP8
By dealignaiWeight-level abliteration in the native FP8/FP4 checkpoint format. The maintainer documents a specialized SGLang deployment on 4× H200. Read its runtime requirements before renting hardware.
View on Hugging FaceDeepSeek V4.1 Flash · Abliterated
By distributedcognitionAn alternative abliteration approach retaining the upstream checkpoint layout. Includes evaluation and SGLang serving notes. Hugging Face requires accepting the repository’s access conditions.
View on Hugging FaceDeepSeek V4.1 Flash · Uncensored GGUF
By AdolphssonQuantizations derived from dealignai’s uncensored weights, from Q2_K through Q8_0. Intended for a specialized CPU llama.cpp fork and high-memory servers—not a standard desktop Ollama download. Download every shard for the chosen quantization.
View on Hugging FaceAt a glance
- Parameters
- 552B backbone · 8B active prefill / 16B active decode
- Architecture
- Causal encoder-decoder · Mixture of experts
- Context length
- Up to 1,000,000 tokens · runtime and memory dependent
- License
- MIT
- Software
- DeepSeek reference inference, SGLang, Specialized llama.cpp fork (GGUF)
Will it run on your machine?
Save your machine to see a personalized rating and its reasoning.
Add my hardwareBest for
- Reasoning over large documents and long conversations.
- Coding and agent workloads with a compatible tool-calling runtime.
- Understanding images alongside text.
Tradeoffs
- 8B/16B active parameters describe compute per token, not the memory needed to store the model.
- The maximum context is a capability ceiling, not a promise of speed or fit on every machine.
- Runtime support is evolving. Follow the exact checkpoint’s instructions rather than generic Hugging Face quick-start snippets.
- Community uncensored variants modify the original weights; their reported results are not YouRunAI benchmarks.
Ways to run it
DeepSeek reference inference · Linux · multi-GPU
Start with the publisher’s conversion and inference instructions for the original weights. This page does not claim that a generic stock vLLM installation supports this architecture.
Official instructionsSGLang · community FP8 variants · Linux · multi-GPU server or rental
The maintainer reports a 4× H200 NVLink deployment. Use its DeepSeek V4.1-specific runtime, tensor/expert parallel settings, and parsers. Moving Engram tables to host memory requires roughly 200 GB of additional host RAM.
Official instructionsSpecialized llama.cpp fork · uncensored GGUF · Linux · high-memory CPU server
The author documents a CPU-only runtime/deepseek41 fork and a 440 GB RAM reference system. Published weight sizes are approximately 271 GB (Q2_K), 352 GB (Q3_K_M), 426 GB (Q4_K_M), and 508 GB (Q8_0). Allow additional runtime and context memory; file sizes are not RAM recommendations.
Official instructionsExplore its uses
Sources and files
Primary sources and files behind this model page.
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