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metadata
license: mit
base_model: unsloth/Qwen2.5-3B-Instruct
library_name: peft
tags:
  - qwen2.5
  - unsloth
  - lora
  - peft
  - interview
  - software-engineering
  - text-generation
language:
  - en
pipeline_tag: text-generation
datasets:
  - shimogerald/interview-coach-dataset

Interview Coach LoRA (Qwen2.5-3B-Instruct)

LoRA adapter fine-tuned for software-engineering interview Q&A coaching.

Model Details

  • Base model: unsloth/Qwen2.5-3B-Instruct
  • Method: QLoRA (4-bit) + LoRA via Unsloth
  • LoRA: r=16, lora_alpha=16, lora_dropout=0
  • Target modules: q_proj, k_proj, v_proj, o_proj, gate_proj, up_proj, down_proj
  • Context length: 2048
  • Language: English

Training Data

Fine-tuned on shimogerald/interview-coach-dataset (chat messages format, ~90/10 train/val).

Intended Use

Practice / coaching-style answers to technical interview questions (APIs, systems, coding concepts, behavioral, etc.).

Limitations

  • Synthetic training data may contain errors
  • Not a substitute for real interview feedback
  • May hallucinate technical details
  • English only

How to Use

from unsloth import FastLanguageModel

model, tokenizer = FastLanguageModel.from_pretrained(
    model_name="shimogerald/lora_interview_coach",
    max_seq_length=2048,
    load_in_4bit=True,
)
FastLanguageModel.for_inference(model)

messages = [{"role": "user", "content": "What is the difference between PUT and PATCH?"}]
prompt = tokenizer.apply_chat_template(
    messages, tokenize=False, add_generation_prompt=True
)
inputs = tokenizer(prompt, return_tensors="pt").to(model.device)
out = model.generate(**inputs, max_new_tokens=256, do_sample=False)
print(tokenizer.decode(out[0][inputs["input_ids"].shape[-1]:], skip_special_tokens=True))

If loading the adapter separately fails, load the base model then attach this repo with PEFT PeftModel.from_pretrained.

Training Setup (summary)

  • Optimizer: AdamW
  • LR schedule: cosine with warmup
  • Epochs: 3
  • Framework: Unsloth + Accelerate + Transformers

This qwen2 model was trained 2x faster with Unsloth