CanisAI/teach-science-qwen3-4b-2507-r1

Canis.teach - Qwen3-4B Instruct (Science)

LoRA adapters for the Science tutor in the Canis.teach suite.

• Base Model: Qwen/Qwen3-4B-Instruct-2507
• Release: CanisAI/teach-science-qwen3-4b-2507-r1
• Project: Canis.teach - Learning that fits.
• Subject: Science

What is this?

This repository provides LoRA adapters fine-tuned on Science tutoring dialogues. Apply these adapters to the base model to enable subject-aware, didactic behavior without downloading a full merged checkpoint.

The model is designed to teach, not just answer - providing step-by-step explanations, hints, and pedagogically structured responses.

For ready-to-run merged models or Ollama-friendly GGUF quantizations, see the "Related Models" section.

Quick Start

Installation

pip install transformers peft torch

Usage (LoRA)

from transformers import AutoTokenizer, AutoModelForCausalLM
from peft import PeftModel

base = "Qwen/Qwen3-4B-Instruct-2507"
adapter = "CanisAI/teach-science-qwen3-4b-2507-r1"

tokenizer = AutoTokenizer.from_pretrained(base, use_fast=True)
model = AutoModelForCausalLM.from_pretrained(
    base, 
    device_map="auto",
    torch_dtype="auto"
)
model = PeftModel.from_pretrained(model, adapter)

# Example prompt
prompt = "Briefly compare mitosis and meiosis: purpose, divisions, chromosome number, variation."
inputs = tokenizer(prompt, return_tensors="pt").to(model.device)
outputs = model.generate(
    **inputs,
    max_new_tokens=256,
    temperature=0.7,
    top_p=0.8,
    top_k=20,
    do_sample=True
)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

Training Details

• Base Model: Qwen/Qwen3-4B-Instruct-2507
• Training Method: Supervised Fine-Tuning (SFT) with LoRA
• Framework: Unsloth + TRL/PEFT
• Data: Canis.lab-curated Science tutoring dialogues
• Target Modules: Query, Key, Value, Output projections
• Rank: 16
• Alpha: 32

Intended Use

• Primary: Subject-aware tutoring for Science education
• Applications: Educational prototypes, tutoring systems, research
• Approach: Stepwise explanations, pedagogical hints, rubric-aligned responses
• Target Audience: Students, educators, researchers

Model Behavior

The model is optimized for:

• Clear, step-by-step explanations
• Appropriate difficulty progression
• Encouraging learning through hints rather than direct answers
• Subject-specific pedagogical approaches
• Maintaining educational standards and accuracy

Recommended Settings

For optimal tutoring behavior:

• Temperature: 0.6-0.8
• Top-p: 0.8-0.9
• Top-k: 20-40
• Max tokens: 256-512 (depending on complexity)

Safety and Limitations

Important Considerations:

• Human oversight required for educational use
• May occasionally hallucinate or oversimplify complex topics
• For fact-critical applications, consider RAG with verified curriculum sources
• Follow your institution's data privacy and AI usage policies
• Not a replacement for qualified human instruction

Related Models

Type	Repository	Description
LoRA Adapters	CanisAI/teach-science-qwen3-4b-2507-r1	This repository (lightweight)
Merged Model	(Coming Soon)	Ready-to-use full model
GGUF Quantized	(Coming Soon)	Ollama/llama.cpp compatible
Dataset	CanisAI/teach-science-v1	Training data

License

This model inherits the license from the base model (Qwen/Qwen3-4B-Instruct-2507). Please review the base model's license terms before use.

Citation

@misc{canis-teach-science,
  title={Canis.teach Science Tutor},
  author={CanisAI},
  year={2025},
  publisher={Hugging Face},
  howpublished={\url{https://huggingface.co/CanisAI/teach-science-qwen3-4b-2507-r1}}
}

Acknowledgments

• Qwen Team for the excellent base model
• Unsloth for efficient training tools
• Hugging Face ecosystem (Transformers, PEFT, TRL)
• Educators and contributors supporting the Canis.teach project

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Canis.teach - Learning that fits.