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DeepSeekDeepSeek V4DeepseekV4ForCausalLM

DeepSeek V4 Flash — Hardware Requirements & GPU Compatibility

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DeepSeek-V4-Flash is the smaller sibling in DeepSeek's V4 series of Mixture-of-Experts language models, with roughly 291 billion total parameters and 13 billion activated per token. Like DeepSeek-V4-Pro, it was pre-trained on more than 32 trillion tokens and post-trained with supervised fine-tuning, reinforcement learning, and distillation, and it supports the same three switchable reasoning-effort modes for trading speed against accuracy on agentic and reasoning tasks. It natively handles a one-million-token context window and is released under the MIT license. Even at 4-bit quantization it needs roughly 167GB of memory, so local use requires multi-GPU or server-class hardware; most users will access it through a hosted endpoint.

290.9B params · MoE14B active1049K contextMIT811.5K downloads2.3K likes1.5M quant downloads

DeepSeek V4 Flash runs on a 192 GB+ Mac or a datacenter GPU

Best local pick → Mac Pro M2 Ultra (192 GB) · Q4_K_M · 175.1 GB · ~42 tok/s

Macs from96 GB IQ2_S · ~61 tok/s

Score 109.3#28 of 100 open#13 of 78 that fit ≤192 GBMIT

Not set up for it?

Reference GPU · RTX 4090 24 GB

Estimates, ±20% · how we estimate

Run DeepSeek V4 Flash

One recommended way. Every other method, OS and quant is in the step-by-step guide.

Recommended

Ollama
one command · needs Ollama installed
$ollama run hf.co/teamblobfish/DeepSeek-V4-Flash-GGUF:Q4_K_M

Q4_K_M runs on one B200 192 GB · 16K context

Download: Q4_K_M-XL/DeepSeek-V4-Flash-Q4_K_M-XL-00001-of-00004.gguf174.87 GB + 3 partsteamblobfish

install, OS, other quants

Other ways

each opens step-by-step

Run in cloud

Fits on B300 (288 GB) (112 GB headroom) · Q4_K_M

Generation speed
~250 tok/s
generation speed
Cost per 1M output tokens
$7.70
per 1M output tokens

How Much VRAM Does DeepSeek V4 Flash Need?

Select a quantization level; the listed hardware adheres to it.

QuantizationVRAM+32KRuns on
80.3 GB80.7 GB2-bit · i-quant extreme compression — Importance-weighted 2-bit, extreme compression — significant quality lossRuns on RTX PRO 6000 Blackwell Max-Q Workstation Edition 96 GB
87.6 GB88 GB2-bit · i-quant extra small — Importance-weighted 2-bit, extra smallRuns on RTX PRO 6000 Blackwell Max-Q Workstation Edition 96 GB
124.0 GB124.3 GB2-bit · K-quant — 2-bit quantization with K-quant improvementsRuns on Instinct MI250X 128 GB
142.2 GB142.5 GB3-bit medium — 3-bit medium quantizationRuns on GH200 Grace Hopper Superchip 144 GB
174.9 GB175.2 GB4-bit medium — 4-bit medium quantization — most popular sweet spotRuns on B200 192 GB
207.6 GB208 GB5-bit medium — 5-bit medium quantization — good quality/size tradeoffRuns on Instinct MI325X 256 GB
240.3 GB240.7 GB6-bit, very good — 6-bit quantization, very good qualityRuns on Instinct MI325X 256 GB
291.3 GB291.6 GB8-bit, near-lossless — 8-bit quantization, near-losslessRuns on 5× H100 SXM 80 GB
est.calculated, no published file yet

Selected Q4_K_M

4-bit medium quantization

175.1GBat 16K context

Weights
174.6 GB
KV cache
0.2 GB
Overhead
0.3 GB

Server-class: ~175.1 GB at 16K context · one B200 192 GB

Or rent B300 from $6.94/hr.

Which Hardware Can Run DeepSeek V4 Flash?

Q4_K_M · 174.9 GB

DeepSeek V4 Flash (Q4_K_M) requires 174.9 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 228+ GB is recommended. Using the full 1049K context window can add up to 11.5 GB, bringing total usage to 186.4 GB. No consumer GPU has enough memory. 4 devices with unified memory can run DeepSeek V4 Flash, including Mac Studio (M3 Ultra, 512GB), Mac Studio (M3 Ultra, 256GB).

By VRAM tier · typical GPUs and Macs at Q4_K_M

Consumer GPUs (up to 32 GB) and Macs up to 64 GB: too small for this model (needs ≥ 80.5 GB)8 GB tier →12 GB tier →16 GB tier →24 GB tier →Macs →

How good is DeepSeek V4 Flash?

The llmrun Score merges 10 public benchmark boards into a single figure, where 100 represents the average for open models.

Score vs VRAM in the ≤192 GB tier

  • DeepSeek V4 Flash
  • Other models
  • Best Score for its VRAM

#13 of 78 that fit ≤192 GB

Each dot is a model at the best quant that fits ≤192 GB. The line joins the models with the best Score for their VRAM; a dot below it is beaten by a model that needs no more memory.

Full ≤192 GB ranking →

Benchmarks

The 6 boards that weigh most in the llmrun Score, of 12 with a result for this model; badges show who ran the test.

In the ≤192 GB class

78 models fit ≤192 GB

Same Score, only models that fit ≤192 GB at their best quant: the ranking a ≤192 GB owner actually chooses from.

  1. #1

    131.9

    ~229 tok/s · 186.5 GB

  2. #2

    127.6

    ~181 tok/s · 183.0 GB

  3. #3

    124.2

    ~228 tok/s · 185.1 GB

  4. #4

    122.1

    ~299 tok/s · 17.9 GB

  5. #5

    Inkling SmallThinking Machines

    119.6

    ~399 tok/s · 162.7 GB

  6. #6

    113.0

    ~185 tok/s · 182.1 GB

Alternatives to DeepSeek V4 Flash

DeepSeek V4 family · 12 models →

Official models with an llmrun Score, each answering one question; sizes are each model's default quant (usually Q4_K_M) with a 16K-token context.

Similar models

10
ModelScoreVRAMWhy it is similar
DeepSeek V4 Flash 0731DeepSeek127.6183 GBsimilar score
Inkling SmallThinking Machines119.6162.7 GBsimilar score
Qwen3.5 397B A17BAlibaba113.0242.6 GBsimilar score
MiniMax M3MiniMax112.5258 GBsimilar score
MiniMax M2.5MiniMax111.8139.6 GBsimilar score
Qwen3.6 27BAlibaba111.217.9 GBsimilar score
GLM 4.7Z.ai109.1217.9 GBsimilar score
Gemma 4 31B ITGoogle106.821.7 GBsimilar score
Qwen3.6 35B A3BAlibaba106.822 GBsimilar score
Gemma 4 26B A4B ITGoogle105.816.5 GBsimilar score
Fine-tunes & variants(2)

Specifications

Publisher
DeepSeek
Parameters
290.9B
Active parameters
14.1B per token
Architecture
DeepseekV4ForCausalLM
Context Length
1,048,576 tokens
Vocabulary Size
129,280
Release Date
2026-04-22
License
MIT

Frequently Asked Questions

How much VRAM does DeepSeek V4 Flash need?

DeepSeek V4 Flash requires 174.9 GB of VRAM at Q4_K_M, or 582.2 GB at BF16. Full 1049K context adds up to 11.5 GB (186.4 GB total).

VRAM = Weights + KV Cache + Overhead

Weights = 290.9B × 4.8 bits ÷ 8 = 174.6 GB

KV Cache + Overhead ≈ 0.3 GB (at 2K context + ~0.3 GB framework)

Fit ratings and hardware model lists check this model with room for a 16K-token context, which needs a little more memory.

KV Cache + Overhead ≈ 11.8 GB (at full 1049K context)

VRAM usage by quantization

174.9 GB
186.4 GB

Learn more about VRAM estimation →

Can NVIDIA GeForce RTX 5090 run DeepSeek V4 Flash?

No — DeepSeek V4 Flash requires at least 80.3 GB at IQ2_XXS, which exceeds the NVIDIA GeForce RTX 5090's 32 GB of VRAM.

What's the best quantization for DeepSeek V4 Flash?

For DeepSeek V4 Flash, Q4_K_M (174.9 GB) offers the best balance of quality and VRAM usage. Q5_K_M (207.6 GB) provides better quality if you have the VRAM. The smallest option is IQ2_XXS at 80.3 GB.

VRAM requirement by quantization

IQ2_XXS
80.3 GB
IQ3_XXS
113.1 GB
Q3_K_M
142.2 GB
Q4_K_M ★
174.9 GB
Q5_K_M
207.6 GB
BF16
582.2 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run DeepSeek V4 Flash on a Mac?

Yes — Mac Studio (M3 Ultra, 96GB) and 20 other Macs can run DeepSeek V4 Flash, the smallest at IQ2_S. Apple Silicon uses unified memory, so the model shares RAM with the system. At Q4_K_M you need at least 174.9 GB of usable unified memory (RAM minus macOS overhead), from Mac Pro M2 Ultra (192 GB).

Can I run DeepSeek V4 Flash locally?

Yes — DeepSeek V4 Flash can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is DeepSeek V4 Flash?

At Q4_K_M, DeepSeek V4 Flash can reach ~96 tok/s on AMD Instinct MI350X. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.

tok/s = 1000 ÷ (active GB ÷ (bandwidth GB/s × efficiency) × 1000 + layers × routing ms)

Mixture-of-Experts: just the active experts get read for each token, along with a fixed routing cost per layer.

Example: NVIDIA B200 → 8.5 GB active ÷ (8000 × 0.65) = 1.63 ms, plus 43 layers × 0.055 ms = 2.37 ms, so 1000 ÷ 4.00 ms = ~250 tok/s

Estimated speed at Q4_K_M (174.9 GB)

~250 tok/s
~250 tok/s
~96 tok/s

Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.

Learn more about tok/s estimation →

What's the download size of DeepSeek V4 Flash?

At Q4_K_M, the download is about 174.57 GB. The full-precision BF16 version is 581.89 GB. The smallest option (IQ2_XXS) is 80.01 GB.

Which GPUs can run DeepSeek V4 Flash?

No single consumer GPU has enough VRAM to run DeepSeek V4 Flash at Q4_K_M (174.9 GB). Multi-GPU or professional hardware is required.

Which devices can run DeepSeek V4 Flash?

4 devices with unified memory can run DeepSeek V4 Flash at Q4_K_M (174.9 GB), including Mac Pro M2 Ultra (192 GB), Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB), Mac Studio M2 Ultra (192 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.