Mariana — Qwen3-14B Fine-tuned (Automotive Sales Assistant)

Fine-tuned version of Qwen3-14B for automotive sales conversations in Mexican Spanish.

Model Details

  • Base model: Qwen/Qwen3-14B
  • Fine-tuning: LoRA + merged
  • Language: Spanish (Mexico)
  • Domain: Automotive sales (used cars)
  • Tool calling: Hermes format, 11 custom tools

Intended Use

Virtual sales assistant for Autos TREFA, a used car dealership in Mexico. Handles:

  • Vehicle inventory search and recommendations
  • Financing calculations
  • Business information (hours, locations, policies)
  • Lead capture and follow-up

Available Formats

Format Path Use Case
Safetensors (merged) / vLLM, transformers, TGI
GGUF Q5_K_M /gguf/ llama.cpp, Ollama

Usage with vLLM

vllm serve marianomorales/mariana-qwen3-14b \
  --max-model-len 8192 \
  --enable-auto-tool-choice \
  --tool-call-parser hermes

Training

  • Method: LoRA (r=16, alpha=32)
  • Dataset: Synthetic automotive sales conversations
  • Hardware: NVIDIA RTX 5880 Ada (48GB VRAM)
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