281 1 week ago

Qwen3.8-27B TURBO, uncensored, sized for 16 GB GPUs: 108k context, fast thinking, works in Claude Code and Codex.

ollama run awakenedsniper78/qwen3.8-turbo

Details

1 week ago

2d7ef841fcae · 11GB

qwen35
·
27.3B
·
IQ3_XXS
{ "min_p": 0, "num_ctx": 110592, "presence_penalty": 0, "repeat_penalty": 1, "te

Readme

Qwen3.8-27B TURBO: 16 GB GPU edition

A fast, uncensored Qwen3.8-27B that fits on a single 16 GB graphics card with 108k context, and still leaves room for your desktop and a browser. Tested on an RTX 5080.

  • Thinks less, answers sooner: a few hundred thinking tokens where stock Qwen3.8 often spends thousands
  • Uncensored: refusals removed by the original author (Heretic)
  • Works in Claude Code and OpenAI Codex: chat template fixed so agent tools don’t error out
  • Tool calling supported

Quick start

ollama run awakenedsniper78/qwen3.8-turbo

Required server settings

The 108k context only fits with a quantized KV cache. Set these for the Ollama server, then restart Ollama:

OLLAMA_FLASH_ATTENTION=1
OLLAMA_KV_CACHE_TYPE=q4_0
OLLAMA_GPU_OVERHEAD=536870912

Desktop already using a lot of VRAM? Lower the context inside a chat:

/set parameter num_ctx 65536

Performance (RTX 5080, Ollama 0.40)

Context 110,592 tokens
Speed ~58 tokens/s
VRAM 12.9 GB, 100% on GPU
Download 11 GB (3-bit IQ3_XXS)

Want ~100 tokens/s? The Hugging Face GGUF keeps the MTP head for speculative decoding in llama.cpp. Ollama doesn’t use it yet.

Recommended sampling

Temperature 0.6, top_p 0.95, top_k 20 (DavidAU’s advice for coding and tool calling).

What’s inside

  • Base: Qwen3.8-27B by the Qwen team
  • Fine-tune: DavidAU’s TURBO-Fable-Cold-Fusion-735-882 Heretic Uncensored
  • Quant: 3-bit IQ3_XXS using Unsloth’s dynamic per-tensor recipe and mradermacher’s importance matrix
  • Text only: no vision, so the VRAM goes to context instead

No coding benchmark has been run on this 3-bit version yet. A community tool-calling test on the 8-bit version put it slightly ahead of stock Qwen3.8-27B.

Credits

DavidAU for the fine-tune · Qwen team for the base model · Unsloth for the quant recipe · mradermacher for the imatrix · License: Apache 2.0

Full details and rebuild steps: Hugging Face repo