Lambent/Iris-12B-gemma-4-it-qat

TEXT GENERATIONConcurrent Unit Cost:1Model Size:12BQuant:FP8Context Size:32kTool Calling:SupportedPublished:Jun 13, 2026License:apache-2.0Architecture:Transformer0.0K Open Weights Featherless Exclusive Cold

Iris-12B-gemma-4-it-qat is a 12 billion parameter instruction-tuned causal language model developed by Lambent, based on the Gemma 4 architecture. This model is optimized for creative conversational tasks and reasoning, leveraging a private multiturn dataset and reasoning data from a larger Gemma 4 31B sibling. It demonstrates strong performance in creative generation and maintains robustness against quantization.

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Overview

Lambent's Iris-12B-gemma-4-it-qat is a 12 billion parameter instruction-tuned model built upon the Gemma 4 architecture. It was developed using QLoRA SFT with unsloth, specifically training a LoRA adapter on an existing QAT model. The training involved a private multiturn conversational dataset, continued creative pretraining on another private dataset, and incorporated reasoning-focused data from the larger Gemma 4 31B model to enhance its foundational knowledge.

Key Capabilities

  • Creative Generation: The model is specifically fine-tuned for creative tasks, with its output appreciated by Gemini 3 Flash for creativity.
  • Conversational AI: Trained on a private multiturn conversational dataset, indicating proficiency in dialogue-based interactions.
  • Reasoning: Includes reasoning-oriented data from a larger sibling model to bolster its logical capabilities.
  • Quantization Robustness: Designed to hold up well against quantization, suggesting efficiency in deployment.

Good For

  • Applications requiring creative text generation.
  • Multiturn conversational agents and chatbots.
  • Use cases where quantization for deployment efficiency is important, without significant performance degradation.