This quants are specific for the DS4 inference engine. They may work with other inference engines or not (they should, but not the MTP model which requires a specific loader).

https://github.com/antirez/ds4

Files

File	Size	Routed experts (`ffn_{gate,up,down}_exps`)	Everything else
`DeepSeek-V4-Flash-IQ2XXS-w2Q2K-AProjQ8-SExpQ8-OutQ8-chat-v2.gguf`	80.8 GiB	`IQ2_XXS` (gate, up) + `Q2_K` (down)	`Q8_0` attn proj / shared experts / output, `F16` router + embed + indexer + compressor + HC, `F32` norms / sinks / bias
`DeepSeek-V4-Flash-Q4KExperts-F16HC-F16Compressor-F16Indexer-Q8Attn-Q8Shared-Q8Out-chat-v2.gguf`	153.3 GiB	`Q4_K` (all three)	same as above
`DeepSeek-V4-Flash-MTP-Q4K-Q8_0-F32.gguf`	3.6 GiB	MTP / speculative-decoding support (optional, not standalone).

Use q2 on 128 GB Mac machines, q4 on machines with ≥ 256 GB RAM, pair either with MTP for optional speculative decoding.

Quantization recipe

The filename is the spec. In detail, for the q2 file:

Tensor class	Quant	Notes
`blk..ffn_gate_exps`, `blk..ffn_up_exps`	`IQ2_XXS`	routed-expert up/gate
`blk.*.ffn_down_exps`	`Q2_K`	routed-expert down (K-quant for quality)
`blk.*.ffn_{gate,up,down}_shexp`	`Q8_0`	shared experts
`blk.*.attn_q_a`, `attn_q_b`, `attn_kv`, `attn_output_a`, `attn_output_b`	`Q8_0`	all attention projections (MLA + low-rank output)
`output.weight`	`Q8_0`	output head
`token_embd.weight`	`F16`	input embedding
`blk.*.ffn_gate_inp` (router)	`F16`	learned router
`blk..exp_probs_b` (router bias), `blk..attn_sinks`, all `*_norm.weight`	`F32`
`blk.*.ffn_gate_tid2eid`	`I32`	hash-routing tables (first 3 layers only)
`blk..attn_compressor_`, `blk..indexer_`, `blk..hc_`, `blk..output_hc_`	`F16` / `F32`	DSv4-specific auxiliary blocks

For the q4 file, only the three routed-expert classes change to Q4_K. Everything else is byte-for-byte identical to the q2 recipe.

The motivation behind the asymmetry: the routed experts are the majority of the parameter count but each individual expert handles only a fraction of tokens, so aggressive quantization on them costs less in average quality than the same treatment of router, projections, or shared experts. Keeping the decision-making components at Q8_0 preserves model behavior; crushing the experts buys the size.

Usage

bash

git clone https://github.com/antirez/ds4
cd ds4
./download_model.sh q2     # 128 GB RAM machines
./download_model.sh q4     # >= 256 GB RAM machines
./download_model.sh mtp    # optional MTP / speculative decoding
make

./ds4 -p "Explain Redis streams in one paragraph."
./ds4-server --ctx 100000 --kv-disk-dir /tmp/ds4-kv --kv-disk-space-mb 8192

The download_model.sh script fetches from this repository, resumes partial downloads, and points ./ds4flash.gguf at the selected variant.

License

MIT. The base model copyright is held by DeepSeek; the GGUFs are redistributed under the base model's release terms.

antirez/deepseek-v4-gguf

DeepSeek V4 Flash — GGUF for ds4

Files

Quantization recipe

Usage

License

antirez/
deepseek-v4-gguf