This is a simplified guide to an AI model called Qwen3.5-27B-Uncensored-HauhauCS-Aggressive maintained by HauhauCS. If you like these kinds of analyses, join AIModels.fyi or follow us on Twitter.
Model Overview
Qwen3.5-27B-Uncensored-HauhauCS-Aggressive is an uncensored variant of the original Qwen3.5-27B model, maintained by HauhauCS. This model achieves zero refusals while maintaining full capability and functionality of the base model. The aggressive variant applies stronger uncensoring techniques compared to potential balanced alternatives. If you need a smaller footprint, the 4B variant and 9B variant are also available from the same creator.
Model Inputs and Outputs
This is a text-to-text model with native multimodal support for images and video. The model accepts text prompts and optionally image or video inputs, then generates coherent text responses. It maintains a 262K token context window, extendable to 1M tokens with YaRN. The model can produce multi-token predictions in a single forward pass.
Inputs
- Text prompts of any length within the context window
- Images and video files (requires the accompanying vision encoder file)
- System messages and conversation history for maintaining context
Outputs
- Generated text responses without content refusals
- Code, creative writing, technical explanations, and unrestricted analysis based on input queries
- Optional disclaimers that may appear at the end of responses (baked into base training, not safety blocks)
Capabilities
The model features a hybrid architecture combining Gated DeltaNet linear attention with full softmax attention in a 3:1 ratio across 64 layers and 27B parameters. It understands 201 languages and can handle thinking-mode operations when given sufficient context. The model supports vision understanding through its native multimodal architecture, enabling it to process and analyze images alongside text. Multi-token prediction allows faster generation in compatible frameworks. The architecture is brand new, released in March 2026, and requires recent builds of compatible runtimes like llama.cpp for optimal functionality.
What can I use it for?
This model suits projects requiring uncensored text generation without capability loss. Use cases include unrestricted creative writing, technical research analysis, comprehensive question answering, content generation that bypasses safety guardrails, and educational applications requiring complete explanations. The multimodal capabilities make it useful for image analysis paired with detailed text output. For production deployments, frameworks like vLLM, SGLang, or KTransformers handle high-throughput requirements. The aggressive variant specifically targets users who need the model to respond to any prompt without limitation.
Things to try
Experiment with the thinking mode by maintaining at least 128K context to unlock extended reasoning capabilities. Test the vision encoder by loading both the main GGUF file and the mmproj file together in compatible runtimes to analyze images and video content. Compare outputs using the recommended temperature settings: 0.6 with thinking mode for more deliberate responses, or 0.7 without thinking for varied generations.
Try different quantization levels based on your hardware constraints—the IQ quants (IQ2_M, IQ3_M, IQ4_XS) use importance matrix calibration for better quality at extremely low bit rates. Test the model across the 201 supported languages to see how well it maintains capabilities in non-English contexts.