Gryphe/Gemma-4-31B-StyleTune

Hugging Face
VISIONConcurrency Cost:2Model Size:31BQuant:FP8Ctx Length:32kTool Calling:SupportedPublished:Jun 10, 2026License:apache-2.0Architecture:Transformer0.0K Open Weights Warm

Gryphe/Gemma-4-31B-StyleTune is a surgically fine-tuned variant of the Gemma 4 31B model, developed by Gryphe. This model focuses on modifying the writing style by training only the lm_head output projection tensor, resulting in 60% fewer clichés and a significantly altered phraseology. It retains all of Gemma 4 31B's original reasoning, world knowledge, and instruction-following capabilities, making it ideal for narrative generation with a distinct voice.

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Overview

Gryphe/Gemma-4-31B-StyleTune is a unique fine-tuned version of the Gemma 4 31B model, developed by Gryphe. Unlike traditional fine-tuning that modifies many parameters, this model employs a "surgical" approach, training only the lm_head output projection tensor. This specific tensor, responsible for token emission, dramatically influences the model's writing style while keeping the core capabilities of the base Gemma model intact.

Key Capabilities & Differentiators

  • Targeted Style Modification: Achieves a new writing style by altering only one tensor, significantly reducing VRAM requirements and training time on consumer hardware.
  • Reduced Clichés: Benchmarked against 200 diverse roleplay prompts, it shows 60% fewer clichés per 100 words (1.23 down to 0.52) compared to the base instruct model.
  • Unique Vocabulary: Exhibits only 21.7% shared trigram vocabulary with the base model, indicating a distinct and less repetitive phrasing.
  • Preserved Core Intelligence: All of Gemma 4 31B's original reasoning, world knowledge, instruction following, and language understanding capabilities remain completely intact, as these are not affected by the lm_head modification.

Use Cases

This model is particularly well-suited for applications requiring:

  • Narrative Generation: Excels in creating text with a fresh, less cliché-ridden writing style.
  • Creative Writing & Roleplay: Provides a distinct voice for generating engaging and unique story content.
  • Efficient Style Transfer: Offers a method to significantly alter a model's output style without extensive retraining or high computational costs.