---
title: LTX-2.4 Prompt Enhancer
emoji: ✨
colorFrom: green
colorTo: blue
sdk: gradio
sdk_version: 6.13.0
app_file: app.py
pinned: false
hardware: zero-a10g
short_description: Gemma-4 prompt enhancer for LTX-2.4 (called by the demos)
models:
  - google/gemma-4-E2B-it
---

# LTX-2.4 Prompt Enhancer

Standalone Gemma-4 (`google/gemma-4-E2B-it`) prompt enhancer for LTX-2.4. Expands a short user
prompt into a detailed audio-visual caption in the model's training-caption style, exactly
replicating `diffusers`' `LTX2Pipeline.enhance_prompt` (system prompt by mode, greedy decoding
with `no_repeat_ngram_size=3`).

Kept as a separate ZeroGPU Space so the enhancer (and its `torchvision` dependency) stays off the
main 22B video Space's memory budget — the LTX-2.4 video demos call this over `gradio_client`.
Add a first-frame image to enhance for image-to-video.