Experimental model-surgery release. Direct behavioral benchmarking of this native-FP8 checkpoint has not been run. The completed behavioral validation below uses a quantized MLX derivative as a deployment proxy and must not be read as a direct FP8 or capability result.

This is a rank-1 abliterated derivative of deepseek-ai/DeepSeek-V4-Flash-0731. It remains the official post-trained 0731 model: abliteration does not turn it into a base model, and this release is not claimed to be universally "uncensored."

Hugging Face labels the parent relationship as finetune because its model tree currently has no generic derived or model-surgery relationship. This checkpoint was not gradient-finetuned and was not quantized by this project; it was produced by a targeted projection edit while retaining the upstream checkpoint's native mixed precision.

Provenance

Upstream repository: deepseek-ai/DeepSeek-V4-Flash-0731.
Exact upstream revision: 9e165c30e2704aec5d9d593cce3eebd58bbef1cb.
Refusal-direction source revision: 85ae5bbaa7daf4da7b40e007a71a1c06b41fc053.
Reproduction tooling snapshot: apetersson/deepseek-model-tools@c3979d5, using scripts/abliterate_dsv4.py.

Edit recipe

Method: refusal-direction projection from attention residual writers.
Direction rank: 1.
Strength: lambda 3.5.
Main-model layers: 10 through 42, inclusive.
DSpark stages: the corresponding attention output projection in all three attached stages was edited.
Total edited tensors: 36.
Storage: the checkpoint's original mixed FP8/BF16/F32 representation, with three fixed-point FP8 requantization iterations.
Direction SHA-256: 6e4d8a8f3aa9e21795faab2c5b14d29b019acdf2ddbfbd8238430458a5837fe0.

The recipe follows the public refusal-direction work in drowzeys/DeepSeek-V4-Flash-DSpark-Abliterated-Uncensored-1M-57toks, transferred to the newer 0731 checkpoint. That transfer is experimental. See ABLITERATION_MANIFEST.json for the per-tensor edit and FP8 round-trip data.

Format and use

The architecture, tokenizer, official message encoding, one-million-token context declaration, and attached DSpark tensors come from the upstream 0731 checkpoint. Refer to the upstream model card and the included encoding directory for prompt formatting and runtime instructions.

Recommended upstream sampling defaults are temperature=1.0, top_p=0.95 for agentic scenarios, and top_p=1.0 otherwise.

Validation status

Structural validation

All 48 weight shards and 72,317 indexed tensors passed structural validation.
All 36 intended residual-writer edits are recorded in the manifest.
Preliminary direct refusal probes showed the expected behavioral shift.

Behavioral deployment proxy (2026-08-01)

The native-FP8 checkpoint was not loaded for the full benchmark on the 128 GB test host. Instead, the complete prompt gauntlet was run through oMLX using apetersson/DeepSeek-V4-Flash-0731-Abliterated-MLX-Mixed-2bit-3bit-g64, a quantized derivative of this checkpoint. This is useful evidence that the edited behavior survives that conversion and runtime, but it is not a direct measurement of this FP8 artifact.

Run configuration:

oMLX 0.5.4rc1, OpenAI-compatible API, 32,768-token profile.
Temperature 0, top-p 1, seed 42, and maximum 160 generated tokens.
Benchmark tooling and pinned source revisions: apetersson/deepseek-model-tools@dc6af88.
Benchmark fingerprint: 40c3573bd48861b846721220fa06ce0d71905aab236ce45d49d9aa0e95e79af5.
Final completeness gate: 830 unique cases, 830 successful latest records, and zero failed or missing latest records. Seven transient oMLX transport or memory-guard failures were repaired with a serial retry pass.

Suite	Cases	Completed result
UncensorBench	200	0 hard refusals; keyword compliance on 200/200
XSTest	450	0/450 refusals under the exact upstream prefix classifier; 0/250 safe-prompt over-refusals
StrongREJECT-small	180	60 prompts × baseline, ROT13, and refusal-suppression variants; 0 hard refusals under the local heuristic

One XSTest unsafe privacy prompt triggered the deliberately broader local hard-refusal heuristic while not matching XSTest's official prefix classifier; no safe prompt triggered either classifier.

The official fine-tuned StrongREJECT judge was not run, so this card does not claim a StrongREJECT score. A clean reference run and capability benchmark were also not run. Consequently, these results do not establish the native-FP8 checkpoint's refusal rate, quantify the effect of quantization, or demonstrate general capability preservation.

Limitations

Abliteration can affect capabilities and behavior beyond refusals. It does not guarantee compliance, factuality, safety, or a particular response style. Use appropriate access controls and evaluate the model for your deployment.

License and attribution

The upstream repository and weights are MIT licensed. This derivative retains the upstream LICENSE. The refusal direction is attributed to drowzeys/keys under its accompanying MIT notice; see NOTICE. Please cite the original DeepSeek-V4 work and credit DeepSeek-AI when redistributing or publishing results.

apetersson/DeepSeek-V4-Flash-0731-Abliterated-FP8

DeepSeek-V4-Flash-0731 Abliterated (Native FP8)