Rumiii/LlamaTron-RS1-Nemesis-1B

TEXT GENERATIONConcurrency Cost:1Model Size:1BQuant:BF16Ctx Length:32kPublished:Feb 19, 2026License:apache-2.0Architecture:Transformer Open Weights Cold

LlamaTron RS1 Nemesis 1B, developed by Rumiii, is a 1 billion parameter medical reasoning model fine-tuned from meta-llama/Llama-3.2-1B-Instruct. It specializes in complex clinical questions, differential diagnosis, treatment planning, pharmacology, and clinical case analysis, leveraging a dataset of over 200,000 medical reasoning conversations. Despite its compact size, it delivers structured and coherent reasoning for medical applications, making it suitable for research and educational purposes in the medical domain.

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LlamaTron RS1 Nemesis 1B: Medical Reasoning Model

LlamaTron RS1 Nemesis 1B is a specialized medical reasoning model developed by Rumiii. It is built upon the meta-llama/Llama-3.2-1B-Instruct base model and fine-tuned using QLoRA on the extensive Medical-Reasoning-SFT-MiniMax-M2.1 dataset. This dataset comprises 204,773 clinical reasoning conversations, complete with detailed chain-of-thought traces.

Key Capabilities

  • Clinical Reasoning: Excels at handling complex medical questions, providing structured and coherent reasoning.
  • Specialized Medical Knowledge: Covers differential diagnosis, treatment planning, pharmacology, and in-depth clinical case analysis.
  • Compact Size: Despite being a 1 billion parameter model, it demonstrates strong performance in its niche, making it efficient for deployment.
  • Instruction Following: Inherits instruction-following capabilities from its Llama-3.2-1B-Instruct base.

Good for

  • Medical Research: Ideal for exploring AI applications in clinical decision support and medical education.
  • Educational Tools: Can be integrated into platforms for training medical students or healthcare professionals.
  • Proof-of-Concept Development: Suitable for developing and testing medical AI prototypes where a smaller, specialized model is advantageous.
  • Contextual Medical Q&A: Answering specific medical queries with detailed, reasoned responses.

Training Details

The model was trained for 1 epoch over 6,271 steps on an NVIDIA H200 GPU, utilizing QLoRA with 4-bit NF4 quantization. It achieved consistent loss reduction, indicating stable training without overfitting. The maximum sequence length used during training was 512 tokens.

Limitations

This model is intended for research and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Users should always consult qualified healthcare providers for medical decisions.