Qwen3.8-27B Uncensored Aggressive is out with K_P quants and HauhauCS FastMTP (up to 3.02x TG)!

Reddit r/LocalLLaMA Models

Summary

The Qwen3.8-27B Uncensored Aggressive AI model has been released, featuring K_P quantization and HauhauCS FastMTP for significant performance improvements, with no content refusals and multimodal support.

The dense Qwen release is back! Qwen3.8-27B Uncensored Aggressive is out with the complete K_P quant range, Vision, native NextN, and HauhauCS FastMTP. Aggressive here means no refusals, no personality alterations, and very little preamble on difficult prompts. It keeps Qwen3.8-27B's original reasoning, agentic, image, and video capabilities with my Aggressive uncensoring profile applied. https://huggingface.co/HauhauCS/Qwen3.8-27B-Uncensored-HauhauCS-Aggressive-MTP-GGUF It scored 0/465 refusals* and passed every manual prompt I used for the final release check. More than 400 people requested access while I was still finishing it, which was honestly wild to see. My models are also getting close to 30 million downloads on Hugging Face now, so thank you to everyone who has been testing them and sending feedback. The biggest addition this time is HauhauCS FastMTP. In the final Q8_K_P service tests it reached up to 3.02x document TG and 1.93x reasoning TG versus MTP disabled. It also reached up to 35.2% more document TG and 21.1% more reasoning TG than the standard embedded MTP profile, with every drafted token still verified by the full target before it is accepted. The same 903 MB FastMTP sidecar works across the complete quant lineup. Every text GGUF also preserves Qwen3.8's native embedded NextN head, so current upstream llama.cpp can use embedded MTP directly. The optimized FastMTP path uses the included sidecar and llama.cpp patch, with exact build and serving commands in the README. What's included: - Q8_K_P, Q6_K_P, Q5_K_P, Q4_K_P, IQ4_XS, Q3_K_P, IQ3_M, IQ3_XS, Q2_K_P, IQ2_M - HauhauCS FastMTP sidecar, shared by every text quant - BF16 mmproj for image and video support - Checksums and signed provenance (I've alerted on my Discord that there have been a few bad actors putting payloads in "Uncensored" "HauhauCS" "Aggressive" GGUF's, please be careful) K_P quants recap for anyone who missed the previous releases: these are my custom model-specific quants, with a separate optimized profile made for each model. They effectively gain one or two quant levels of quality for around 5 to 15% more size than the base quant, while remaining normal GGUF files that work in llama.cpp, LM Studio, and other GGUF runtimes. Quick specs: - 27B dense - 64 layers with 48 Gated DeltaNet layers and 16 gated-attention layers - 262,144 native context - Multimodal text, image, and video support - Native embedded NextN plus the optional HauhauCS FastMTP acceleration profile Sampling params for thinking mode: `temp=1.0, top_k=20, top_p=0.95, min_p=0, presence_penalty=0, repetition_penalty=1.0` For non-thinking mode: `temp=0.7, top_k=20, top_p=0.80, min_p=0, presence_penalty=1.5, repetition_penalty=1.0, enable_thinking=false` Use `--jinja` with llama.cpp. K_P quants may show as `?` in LM Studio's quant column, which is purely cosmetic and does not affect loading. Hugging Face's hardware compatibility widget may also hide K_P files, so use View variants or Files and versions if the full list is not visible. The full per-quant Blackwell and Ada results are in the repo. If you test FastMTP, please include your hardware, quant, context, and draft depth with the numbers so I can compare real-world results across more systems. The Discord link is in the repo for updates, feedback, roadmaps, projects, or just to chat. As always, I hope everyone enjoys the release!
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Reddit r/LocalLLaMA

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