---
title: Prompt Lens - Image to Detailed Prompt
emoji: 🔎
colorFrom: purple
colorTo: indigo
sdk: gradio
sdk_version: 6.20.0
app_file: app.py
pinned: false
license: apache-2.0
startup_duration_timeout: 1h
models:
  - Qwen/Qwen3-VL-4B-Instruct
preload_from_hub:
  - Qwen/Qwen3-VL-4B-Instruct
---

# Prompt Lens

Upload an image and receive a detailed, generator-ready reconstruction prompt plus a tailored negative prompt.

The app uses `Qwen/Qwen3-VL-4B-Instruct` to describe subjects, composition, environment, lighting, camera cues, materials, colors, text, and visual style. Style presets and an optional focus field let you steer the result.

## Hardware

Use **ZeroGPU** or another CUDA GPU. The model is loaded lazily on the first request.