Can DeepSeek V4 Flash run on H100 NVL 188GB?

YES — With Offload

S96Excellent

Estimated from fit model

DeepSeek V4 Flash needs ~179.0 GB VRAM. H100 NVL 188GB has 188.0 GB. With NVFP4 quantization, expect ~136 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: HighStack: StandardBottleneck: Balanced

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

NVFP4 (Medium quality) — 179.0 GB, 136.1 tok/s, Runs with offload

179.0 GB required188.0 GB available

95% VRAM used

Fit status

Runs with offload

Decode

136.1 tok/s

TTFT

1422 ms

Safe context

126K

Memory

179.0 GB / 188.0 GB

Memory breakdown

Weights158.0 GB

KV Cache1.3 GB

Runtime0.9 GB

Headroom18.8 GB

See how fast it feels

See how fast it feelsDeepSeek V4 Flash on H100 NVL 188GB
1st promptCold start — includes initialization
>Write a Python function to sort a list
Here's a Python function that sorts a list using quicksort:

def quicksort(arr):
    if len(arr) <= 1:
        return arr
    pivot = arr[len(arr) // 2]
    left   = [x for x in arr if x < pivot]
    middle = [x for x in arr if x == pivot]
    right  = [x for x in arr if x > pivot]
    return quicksort(left) + middle + quicksort(right)

# Example usage
numbers = [3, 6, 8, 10, 1, 2, 1]
print(quicksort(numbers))  # [1, 1, 2, 3, 6, 8, 10]

The algorithm picks a pivot, partitions the list into smaller, equal, and larger elements, then recursively sorts each partition and concatenates the results.
2nd promptWarm — model ready, no init overhead
>Now add type hints and a docstring
def quicksort(arr: list[int]) -> list[int]:
    """Sort a list using the quicksort algorithm.

    Args:
        arr: List of integers to sort.

    Returns:
        A new sorted list.
    """
    if len(arr) <= 1:
        return arr
    pivot = arr[len(arr) // 2]
    left   = [x for x in arr if x < pivot]
    middle = [x for x in arr if x == pivot]
    right  = [x for x in arr if x > pivot]
    return quicksort(left) + middle + quicksort(right)

Added type hints for the input and return type, plus a Google-style docstring.
Estimated: 136.1 tok/s decode · 1.4s TTFT (warm) · 340 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

Very little memory headroom

You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.

Best improvement path

Buy headroom, not only minimum fit

A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	S	Tight fit	136.1 tok/s	776 ms	126K
Coding	S	Runs with offload	136.1 tok/s	1422 ms	126K
Agentic Coding	S	Runs with offload	136.1 tok/s	2069 ms	126K
Reasoning	S	Runs with offload	136.1 tok/s	1681 ms	126K
RAG	S	Runs with offload	136.1 tok/s	2586 ms	126K

Quantization options

How DeepSeek V4 Flash (284B params) fits at each quantization level on H100 NVL 188GB (188.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	110.8 GB	Low	S90
Q3_K_SBest for your GPU	3	139.2 GB	Low	S90
NVFP4	4	159.0 GB	Medium	F0
Q4_K_M	4	173.2 GB	Medium	F0
Q5_K_M	5	204.5 GB	High	F0
Q6_K	6	232.9 GB	High	F0
Q8_0	8	303.9 GB	Very High	F0
F16	16	582.2 GB	Maximum	F0

Get started

Copy-paste commands to run DeepSeek V4 Flash on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "deepseek-ai/DeepSeek-V4-Flash" \
  --hf-file "DeepSeek-V4-Flash-NVFP4.gguf" \
  -c 4096 -ngl 99

Frequently asked questions

Can H100 NVL 188GB run DeepSeek V4 Flash?

Yes, H100 NVL 188GB can run DeepSeek V4 Flash with a S grade (Runs with offload). Expected decode speed: 136.1 tok/s.

How much VRAM does DeepSeek V4 Flash need?

DeepSeek V4 Flash (284B parameters) requires approximately 179.0 GB of memory with NVFP4 quantization.

What is the best quantization for DeepSeek V4 Flash?

The recommended quantization for DeepSeek V4 Flash is NVFP4, which balances quality and memory efficiency.

What speed will DeepSeek V4 Flash run at on H100 NVL 188GB?

On H100 NVL 188GB, DeepSeek V4 Flash achieves approximately 136.1 tokens per second decode speed with a time-to-first-token of 1422ms using NVFP4 quantization.

Can H100 NVL 188GB run DeepSeek V4 Flash for coding?

For coding workloads, DeepSeek V4 Flash on H100 NVL 188GB receives a S grade with 136.1 tok/s and 126K context.

What context window can DeepSeek V4 Flash use on H100 NVL 188GB?

On H100 NVL 188GB, DeepSeek V4 Flash can safely use up to 126K tokens of context. The model's official context limit is 1.0M, but available memory constrains the safe maximum.

What should I upgrade first if DeepSeek V4 Flash feels slow on H100 NVL 188GB?

Buy headroom, not only minimum fit. A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

See all results for H100 NVL 188GB See all hardware for DeepSeek V4 Flash

Embed this result▼

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<iframe src="https://willitrunai.com/embed/deepseek-v4-flash-on-h100-nvl-188gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

Preview:

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Tight fit

136.1 tok/s

776 ms

126K

Coding

Runs with offload

136.1 tok/s

1422 ms

126K

Agentic Coding

Runs with offload

136.1 tok/s

2069 ms

126K

Reasoning

Runs with offload

136.1 tok/s

1681 ms

126K

RAG

Runs with offload

136.1 tok/s

2586 ms

126K

Quantization options

How DeepSeek V4 Flash (284B params) fits at each quantization level on H100 NVL 188GB (188.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	110.8 GB	Low	S90
Q3_K_SBest for your GPU	3	139.2 GB	Low	S90
NVFP4	4	159.0 GB	Medium	F0
Q4_K_M	4	173.2 GB	Medium	F0
Q5_K_M	5	204.5 GB	High	F0
Q6_K	6	232.9 GB	High	F0
Q8_0	8	303.9 GB	Very High	F0
F16	16	582.2 GB	Maximum	F0

Frequently asked questions

Can H100 NVL 188GB run DeepSeek V4 Flash?

Yes, H100 NVL 188GB can run DeepSeek V4 Flash with a S grade (Runs with offload). Expected decode speed: 136.1 tok/s.

How much VRAM does DeepSeek V4 Flash need?

DeepSeek V4 Flash (284B parameters) requires approximately 179.0 GB of memory with NVFP4 quantization.

What is the best quantization for DeepSeek V4 Flash?

The recommended quantization for DeepSeek V4 Flash is NVFP4, which balances quality and memory efficiency.

What speed will DeepSeek V4 Flash run at on H100 NVL 188GB?

On H100 NVL 188GB, DeepSeek V4 Flash achieves approximately 136.1 tokens per second decode speed with a time-to-first-token of 1422ms using NVFP4 quantization.

Can H100 NVL 188GB run DeepSeek V4 Flash for coding?

For coding workloads, DeepSeek V4 Flash on H100 NVL 188GB receives a S grade with 136.1 tok/s and 126K context.

What context window can DeepSeek V4 Flash use on H100 NVL 188GB?

On H100 NVL 188GB, DeepSeek V4 Flash can safely use up to 126K tokens of context. The model's official context limit is 1.0M, but available memory constrains the safe maximum.

What should I upgrade first if DeepSeek V4 Flash feels slow on H100 NVL 188GB?

Buy headroom, not only minimum fit. A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.