IMG2TXT - Batch Image Caption Generator | JoyCaption for SD & Flux

🧠 Short Description

ComfyUI workflow that automatically generates image captions using JoyCaption, compatible with both Stable Diffusion and Flux.
Perfect for dataset preparation or qualitative comparison between caption models.

⚙️ Detailed Overview

This workflow takes a folder of images and automatically produces text descriptions (captions) using JoyCaption.
It supports three execution modes:

1. Stable Diffusion only

2. Flux only

3. Both models simultaneously

The pipeline is divided into five main sections:

• Input (orange): select the source folder, choose sorting method, and preview the images being processed.

• Prompt & Options (green): choose between a custom or automatic prompt and configure all JoyCaption parameters.

• Description (yellow / blue): parallel caption generation for SD and Flux.

• Output (right): automatically saves captions to separate files without overwriting.

• Preview: optional visual check to ensure consistency before running a full batch.

This system makes it easy to compare the quality and consistency of captions produced by different models, while fully automating large-scale dataset annotation.