A 122M-parameter model with the full DeepSeek-V4-Flash architecture and randomly initialized weights trained from scratch on a small synthetic corpus. It exists so that DeepSeek-V4 code paths can be exercised without the full model.

This is not a usable language model. It's four layers wide enough to be architecturally faithful and nothing more. It produces grammatical, confident, entirely wrong childlike statements, which is what it was trained to do:

Clouds are pillows waiting for a very tall bed.

I think pencils take recess home in a box. They feel like a pudding pencil.

For use as a fixture, not as a model.

Structure

Everything structural about DeepSeek-V4 is present at 1/500th the size:

property	value	same as the real model
architecture	`deepseek4`	yes
layers	4	no (real: 43)
sliding window	128	yes
indexer top-k	512	yes
routed experts / used	256 / 6	yes
CSA / HCA compressed cache	present	yes
vocabulary	129280	yes
trained context	1048576	yes
hidden size	128	no (real: 4096)
parameters	122.18 M	no

It round-trips conversion, loading, MoE routing, the CSA/HCA compressed cache, the Lightning Indexer, sliding-window attention, long prefill, cache transitions and repeated generation. It loads in about a second and fits on any GPU, which makes it practical to put in a loop.

Files

file	size	use
`ralphseek-v4-flash-f32.gguf`	494 MB	F32 reference; the arm to use for byte-exact A/B work
`ralphseek-v4-flash-q8_0.gguf`	142 MB	q8_0 target
`ralphseek-v4-flash-iq4_nl.gguf`	91 MB	quick smoke arm
`ralphseek-v4-flash-mtp-f32.gguf`	223 MB	MTP draft head, F32 (see below)
`ralphseek-v4-flash-mtp-q8_0.gguf`	63 MB	MTP draft head, q8_0
`ralphseek-v4-flash-mtp-iq4_nl.gguf`	44 MB	MTP draft head, IQ4_NL
`hf/`	489 MB	Transformers-format source, for testing `convert_hf_to_gguf.py` itself

Usage

llama-cli -m ralphseek-v4-flash-f32.gguf -p "<｜User｜>Tell me a fact about clouds.<｜Assistant｜></think>" \
          -n 64 --temp 0 --special

The DeepSeek-V4 chat template is required; a raw prompt hits an immediate EOS.

The MTP draft head

The -mtp- files are a standalone NextN head for this model. Together with a target file above they provide a complete DeepSeek-V4 MTP setup in 717 MB at F32, or 135 MB if you pair the IQ4_NL target with the IQ4_NL head, which makes the draft path testable without a real checkpoint.

Pass it as -md, never as -m. The head is 34 tensors: one block holding nextn.{enorm,hnorm,eh_proj,shared_head_norm} plus the shared embedding, output and norm. It has no layers of its own, so loading it as the main model crashes while building the graph. That failure looks alarming and means nothing.

llama-cli -m ralphseek-v4-flash-f32.gguf -md ralphseek-v4-flash-mtp-f32.gguf \
          --spec-type mtp:n_max=1,p_min=0.0 -fa on \
          -p "<｜User｜>Tell me a fact about clouds.<｜Assistant｜></think>" \
          -n 64 --temp 0 --special

On a short greedy completion the head proposes on every step and lands 7 of 9 drafts. Every combination of target and head quantization tested (F32, q8_0 and IQ4_NL, mixed and matched) produced byte-identical output to the same run with no draft model, which is the property speculative decoding is supposed to have and a useful thing to be able to check quickly.

Acceptance on a 122M model trained on nonsense is not a prediction of acceptance on a real one. It's meant as a signal that the path is wired up, not as a benchmark.

Provenance and licensing

Weights are original, trained from random initialization on a synthetic corpus. They are not derived from, distilled from, or a slice of any DeepSeek checkpoint. The hidden size alone (128 against 4096) makes that impossible.
Tokenizer, tokenizer config, generation config and chat template are copied from deepseek-ai/DeepSeek-V4-Flash-0731, which is MIT licensed, so that prompts and special tokens behave identically to the real model. The chat template carries Unsloth's template fixes.
Architecture follows the official Transformers DeepseekV4ForCausalLM implementation.
The MTP head is the num_nextn_predict_layers = 1 head trained alongside this model, repacked into the mtp.0. tensor naming the converter looks for. The repack is a rename and a reorder with no numerical change; every tensor value is preserved exactly.
Not affiliated with or endorsed by DeepSeek.

The name is a joke about a small thing that says wrong facts with total confidence.

ji-farthing/RalphSeek-V4-Flash-GGUF

RalphSeek V4 Flash (tiny DeepSeek-V4 test fixture)

Structure

Files

Usage

The MTP draft head

Provenance and licensing

ji-farthing/
RalphSeek-V4-Flash-GGUF