Stay4S Unified AI - LoRA Adapter

Model Description

Stay4S Unified AI is a Dutch-language AI assistant model fine-tuned on 33,994 records from 6 different agent datasets. Built for the Stay4S ecosystem (customer service, companion app, messaging).

Training Details

  • Base model: Qwen3-4B-Instruct-2507
  • Method: LoRA (Low-Rank Adaptation)
  • Rank (r): 64
  • Alpha: 64
  • Dropout: 0.05
  • Epochs: 3
  • Learning rate: 2e-4
  • Batch size: 2 (grad accum 8)
  • Max sequence length: 1024
  • Training time: 519.6 minutes (~8.7 hours)
  • Total steps: 6,057

Final Metrics

  • Eval loss: 0.576
  • Eval perplexity: 1.78

Training Data

Combined from 6 agent datasets:

  1. Customer service conversations
  2. Technical support
  3. Sales assistant
  4. General assistant
  5. Domain-specific knowledge
  6. Companion app interactions

Total: 33,994 records

Usage

from peft import PeftModel
from transformers import AutoModelForCausalLM, AutoTokenizer

model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen3-4B-Instruct-2507")
model = PeftModel.from_pretrained(model, "miesdevries/stay4s-unified-lora")
tokenizer = AutoTokenizer.from_pretrained("miesdevries/stay4s-unified-lora")

GGUF Version

A quantized GGUF Q8 version will be available in this repo once conversion completes.

License

Apache 2.0 - Stay4S / Het Nieuwe Begin BV

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