How to use from
vLLM
Install from pip and serve model
# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "andreaborio/DeepSeek-V4-Flash-Hebrus-GGUF"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "andreaborio/DeepSeek-V4-Flash-Hebrus-GGUF",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'
Use Docker
docker model run hf.co/andreaborio/DeepSeek-V4-Flash-Hebrus-GGUF
Quick Links

Hebrus Studio — Metal first. SSD when memory ends.

DeepSeek V4 Flash — Hebrus GGUF releases

This repository is the single release container for the versioned DeepSeek V4 Flash artifacts used by the Hebrus inference engine. Hebrus began as a fork of Salvatore Sanfilippo's antirez/ds4. Historical DS4 names remain only in filenames and serialized compatibility fields. The current runtime artifact embeds its routed MoE weights once as a self-describing ds4.expert_major.v2 store. It needs no sidecar, runtime repack, or second routed-weight copy.

Compatibility: existing filenames, the dsbox.json manifest, and the ds4.expert_major.v2 marker remain unchanged serialized contracts.

Versions

File Status Runtime
DeepSeek-V4-Flash-IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8-chat-v2-imatrix-DS4-ExpertMajor-v2.gguf Current Hebrus main at 57acfd4 or newer
DeepSeek-V4-Flash-IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8-chat-v2-imatrix.gguf Legacy canonical source and conversion input Generic GGUF tooling; rejected by current Hebrus inference

Hebrus Studio and the root dsbox.json select only ExpertMajor v2. The canonical file is retained for provenance, checksum-stable conversion, and generic tooling; it is not a fallback for current Hebrus. ExpertMajor v1, sidecars, canonical MoE inference, and non-Metal inference are intentionally unsupported.

The current file uses Hebrus' ExpertMajor v2 extension rather than a portable GGUF layout. Generic GGUF runtimes cannot reconstruct or execute its opaque routed store.

Current artifact

Property Value
Base model deepseek-ai/DeepSeek-V4-Flash
File DeepSeek-V4-Flash-IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8-chat-v2-imatrix-DS4-ExpertMajor-v2.gguf
Size 86,720,114,272 bytes (80.76 GiB)
SHA-256 8378080263eb9224f7228d72e2afa4ac3cf74a116023fdec2c596ff228a33e3f
Container GGUF v3 with one embedded ds4.expert_major.v2 store
Routed geometry 43 routed layers, 256 experts per layer, top-6
Expert record gate + up + down, 7,077,888 contiguous bytes
Routed payload 77,913,391,104 bytes
Quantization IQ2_XXS routed gate/up, Q2_K routed down, selected Q8_0/F16/F32 dense tensors
Qualified hardware Apple Silicon Metal, at least 64 GiB unified memory

The ExpertMajor v2 conversion changes only routed-weight storage order and the GGUF tensor directory. It does not requantize model values. Non-routed tensors are copied byte-for-byte from the canonical source and the routed payload is stored once.

The retained canonical source is 86,720,111,488 bytes with SHA-256 efc7ed607ff27076e3e501fc3fefefa33c0ed8cf1eff483a2b7fdc0c2e616668. It was mirrored checksum-for-checksum from antirez/deepseek-v4-gguf revision 9170bf42beb77f38006e016503ecace31f2bd9a0. Quantization credit belongs to antirez and the DS4 project.

Run with Hebrus

Use andreaborio/hebrus main at commit 57acfd408a3154851a0c59be432904300abb3b6c or a compatible descendant:

git clone https://github.com/andreaborio/hebrus.git
cd hebrus
make -j

./hebrus \
  -m /absolute/path/to/DeepSeek-V4-Flash-IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8-chat-v2-imatrix-DS4-ExpertMajor-v2.gguf \
  --ctx 8192

The ExpertMajor v2 store, Metal backend, and memory policy are selected automatically. No Metal, SSD-streaming, power, sidecar, pack, or format flag is needed. The qualified minimum is 64 GiB unified memory; 128 GiB is the more comfortable tier for this 80.76 GiB artifact.

Verification

The deterministic converter verifies source identity, GGUF metadata, non-routed tensors, every routed expert component, alignment, embedded manifest, and the complete ExpertMajor payload. Canonical and ExpertMajor v2 runs produced identical frontier-logit hashes in the retained 128- and 768-token correctness gates. The 768-token prefill comparison measured 95.82 versus 95.74 tokens/s, so the layout is a locality/runtime contract rather than a claim of standalone universal acceleration.

The clean v2-only refactor gate on an M5 Pro with 64 GiB measured 20.93/13.20 tokens/s prefill/decode from a colder file cache and 23.78/13.95 tokens/s on the immediate warm repeat. Both runs produced frontier-logit SHA-256 71fd3be0732e0fe97b9f104112911dc937896257c604c64eae851e36fa142441 with zero swapout.

The release runtime uses a pressure-gated cache phase: 259 expert records for large prefill, 4,129 through 32K decode, and 2,065 at 65K and above. On the same 64 GiB M5 Pro, the zero-swap prose lanes measured:

Context Prefill Decode TPOT p50/p95
32K+128 164.43 t/s 7.27 t/s 105.410/149.943 ms
65K+128 137.29 t/s 6.59 t/s n/a
100K+128 145.11 t/s 6.44 t/s n/a

The original 32K AUTO controls can swap, so no 32K speedup percentage is published. The promoted result is the safer adaptive policy, exact output, and bounded long-tail latency under the qualified workload.

Limitations

  • Apple Silicon Metal is the only qualified inference backend.
  • At least 64 GiB unified memory is required.
  • Current Hebrus deliberately rejects the retained canonical file, ExpertMajor v1, sidecars, CPU, CUDA, ROCm, and distributed inference for this model.
  • Performance depends on storage state, memory pressure, context length, routing locality, and thermals.

License and attribution

The source repository declares MIT. DeepSeek retains the base-model copyright; the GGUF is redistributed under the base model's release terms. Quantization credit belongs to antirez and the DS4 project.

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