DeepSeek V4 Flash — Hardware Requirements & GPU Compatibility
ChatDeepSeek-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.
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 from 96 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
llmrun Composite Score →
109.3
- 90% range 104.2–114.4
- #28 of 100 open models
- #13 of 78 that fit ≤192 GB
Run DeepSeek V4 Flash
One recommended way. Every other method, OS and quant is in the step-by-step guide.
Recommended
ollama run hf.co/teamblobfish/DeepSeek-V4-Flash-GGUF:Q4_K_MQ4_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
Other ways
each opens step-by-stepRun 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.
| Quantization | VRAM | +32K | Runs on | |
|---|---|---|---|---|
| 80.3 GB | 80.7 GB | 2-bit · i-quant extreme compression — Importance-weighted 2-bit, extreme compression — significant quality loss | Runs on RTX PRO 6000 Blackwell Max-Q Workstation Edition 96 GB | |
| 87.6 GB | 88 GB | 2-bit · i-quant extra small — Importance-weighted 2-bit, extra small | Runs on RTX PRO 6000 Blackwell Max-Q Workstation Edition 96 GB | |
| 124.0 GB | 124.3 GB | 2-bit · K-quant — 2-bit quantization with K-quant improvements | Runs on Instinct MI250X 128 GB | |
| 142.2 GB | 142.5 GB | 3-bit medium — 3-bit medium quantization | Runs on GH200 Grace Hopper Superchip 144 GB | |
| 174.9 GB | 175.2 GB | 4-bit medium — 4-bit medium quantization — most popular sweet spot | Runs on B200 192 GB | |
| 207.6 GB | 208 GB | 5-bit medium — 5-bit medium quantization — good quality/size tradeoff | Runs on Instinct MI325X 256 GB | |
| 240.3 GB | 240.7 GB | 6-bit, very good — 6-bit quantization, very good quality | Runs on Instinct MI325X 256 GB | |
| 291.3 GB | 291.6 GB | 8-bit, near-lossless — 8-bit quantization, near-lossless | Runs on 5× H100 SXM 80 GB |
Selected Q4_K_M
4-bit medium quantization175.1GBat 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
Which Hardware Can Run DeepSeek V4 Flash?
Q4_K_M · 174.9 GBDeepSeek 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).
128–144 GB
Q4_K_M · best fit IQ3_S (124.1 GB)
4 GPUs · 2 Mac classes
GH200 Grace Hopper Superchip~235Simulate output on GH200 Grace Hopper SuperchipH200 NVL~233Simulate output on H200 NVLH200 SXM~233Simulate output on H200 SXMM2 Ultra*128 GB~52Simulate output on Mac Pro M2 Ultra (128 GB)M5 Max128 GB~44Simulate output on Mac Studio M5 Max (128 GB)192+ GB
fits · 16.9 GB free · up to 1M ctx
6 GPUs · 1 Mac class · 2 device families
B200~250Simulate output on B200B300~250Simulate output on B300Instinct MI350X~96Simulate output on Instinct MI350XM3 Ultra*256–512 GB~43Simulate output on Mac Studio (M3 Ultra, 256GB)8x H100 SXM5~351Simulate output on NVIDIA DGX H1008x A100 SXM4~316Simulate output on NVIDIA DGX A100 640GB
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.
- LMArena Text
LMArena · Oct 2026Arena
Arena1438.7
#21/187 open
- LiveBench Coding
LiveBench · Jun 2026Independent
Independent69.2
#17/19 open
- LiveBench Reasoning
LiveBench · Jun 2026Independent
Independent70.6
#18/19 open
- LMArena WebDev
LMArena · Oct 2026Arena
Arena1581.4
#12/52 open
- LiveBench Math
LiveBench · Jun 2026Independent
Independent79.7
#17/19 open
- SciCode
Epoch AI · Apr 2026Lab-reported
Lab-reported44.9%
#23/66 open
In the ≤192 GB class
78 models fit ≤192 GBSame Score, only models that fit ≤192 GB at their best quant: the ranking a ≤192 GB owner actually chooses from.
- #1
MiMo V2.6 Flash RLXiaomi
131.9
~229 tok/s · 186.5 GB
- #2
DeepSeek V4 Flash 0731DeepSeek
127.6
~181 tok/s · 183.0 GB
- #3
GLM 5.3 FlashZ.ai
124.2
~228 tok/s · 185.1 GB
- #4
Qwen3.8 27BAlibaba
122.1
~299 tok/s · 17.9 GB
- #5
Inkling SmallThinking Machines
119.6
~399 tok/s · 162.7 GB
- #6
Qwen3.5 397B A17BAlibaba
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.
Best alternative at this size
MiMo V2.6 Flash RL
Xiaomi
- 22.6 higher Score
- 11.4 GB more VRAM
Score 131.9 · 186.5 GB
Other vendor
GLM 5.3 Flash
Z.ai
- 14.9 higher Score
- 30.1 GB more VRAM
Score 124.2 · 205.2 GB
Similar models
10| Model | Score | VRAM | tok/s | Why it is similar |
|---|---|---|---|---|
| DeepSeek V4 Flash 0731DeepSeek | 127.6 | 183 GB | —needs > 24 GB | similar score |
| Inkling SmallThinking Machines | 119.6 | 162.7 GB | —needs > 24 GB | similar score |
| Qwen3.5 397B A17BAlibaba | 113.0 | 242.6 GB | —needs > 24 GB | similar score |
| MiniMax M3MiniMax | 112.5 | 258 GB | —needs > 24 GB | similar score |
| MiniMax M2.5MiniMax | 111.8 | 139.6 GB | —needs > 24 GB | similar score |
| Qwen3.6 27BAlibaba | 111.2 | 17.9 GB | ~38 | similar score |
| GLM 4.7Z.ai | 109.1 | 217.9 GB | —needs > 24 GB | similar score |
| Gemma 4 31B ITGoogle | 106.8 | 21.7 GB | ~32 | similar score |
| Qwen3.6 35B A3BAlibaba | 106.8 | 22 GB | ~151 | similar score |
| Gemma 4 26B A4B ITGoogle | 105.8 | 16.5 GB | ~171 | similar score |
Fine-tunes & variants(2)
Specifications
- Publisher
- DeepSeek
- Family
- DeepSeek V4
- 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
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
★ Recommended — best balance of quality and VRAM usage.
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)
Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
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.