News
Three Weeks On, the DeepSeek V4.1 Flash Derivative Ecosystem Takes Shape: GGUF Quants, Abliterated and FP8 Community Builds
Thanks to the MIT license, community derivatives of DeepSeek V4.1 Flash appeared within hours of release: a full-precision abliterated build, GGUF quants for local inference, and an FP8 uncensored variant (the most downloaded), plus a MixedQ2 mixed-quant build and the forgequant quantization toolkit. DeepSeek has not created or endorsed any derivative.
Source: Tech Insider
Derivative Timeline
DeepSeek V4.1 Flash was open-sourced on September 10 under the MIT license — free to modify and redistribute. Tracking reports say derivatives appeared on Hugging Face within hours of the official release, with at least three builds alive by September 13:
| Repository | Type | Notes |
|---|---|---|
distributedcognition/DeepSeek-V4.1-Flash-abliterated |
Abliterated (refusal-removed), full precision | Actively updated through September 13 |
vcruz305/DeepSeek-V4.1-Flash-GGUF |
GGUF conversion | For local runs on consumer hardware via llama.cpp etc.; drawing steady download traffic |
dealignai/DeepSeek-V4.1-Flash-UNCENSORED-FP8 |
Uncensored + FP8 quant | Model card lists the ablation date as the same day as the official release; FP8 roughly halves memory vs FP16; keeps native multimodal input; 2,254 downloads as of September — the most-downloaded tracked derivative |
New Quantization Experiments
apetersson/DeepSeek-V4.1-Flash-MixedQ2-GGUF: mixed re-quantization of the routed experts — IQ2_XXS for gate/up, Q2_K for down experts — built with pinned llama.cpp quantizers (PR #28696)- forgequant (open-source GitHub tool): config-driven asymmetric quantization pipeline with per-expert-family quant types plus imatrix, producing GGUF outputs with a live web dashboard
Official Position and Risk Notes
- All three derivatives were uploaded by independent third-party accounts; DeepSeek has not created, endorsed, or distributed any uncensored / abliterated version
- The MIT license makes these derivatives perfectly legal, but "legal" is not "trustworthy": de-aligned builds carry no official guarantees on safety or behavioral stability — evaluate the risk yourself before use
- We track the base model: DeepSeek-V4.1-Flash — as derivative quants land, the local playability of this 552B flagship is improving fast