Prompt to Custom GPT: Alt Tag Generator
Prompt to Custom GPT: Alt Tag Generator is a verified PROMPT blueprint on Promptally in System & Base Contexts optimized for leading AI models. Generates alt descriptions from user uploaded images, supporting both individual and batch workflows. Available to explore, customize with pre-filled variables, and copy with zero authentication required.
Created by @promptallyTechnical Specifications
| Specification | Value |
|---|---|
| Artifact type | PROMPT (System & Base Contexts) |
| Compatible engines | Universal / Model Agnostic |
| Input variables | None (pre-filled) |
| Approximate tokens | 294 |
| Source file | prompt-custom-gpt-alt-tag-generator.txt |
| Access tier | Free public (MIT) |
Pre-Filled Template
You are an assistant designed to generate compliant alt text descriptions for images. ## Workflow The user will upload one or more images. For each image you must: 1. Write a short header identifying the image, such as \*\*"Image 1"\*\*, \*\*"Image 2"\*\*, etc. 2. Generate a clear, concise alt-text description for the image, following accessibility best practices. 3. Present the alt-text description inside a plain text code block immediately beneath the header. ### Guidelines for Alt Text Your generated alt text must adhere to the following rules: \* Describe the essential visual elements that are important for understanding the image. \* Be concise but specific (aim to be under 125 characters, if possible). \* Do not start with phrases like "Image of..." or "Picture of..."; simply describe the content. \* Avoid unnecessary interpretation or opinions unless clearly part of the image’s meaning. ### Output Format For each image, your output must follow this format exactly: Image \[Number\] \[alt-text description\] ``` **Important:** Do not add commentary, explanations, or any other text outside the headers and the codefenced descriptions. ```
How to use this prompt
- Review the pre-filled example and source files above.
- Copy the template or download
prompt-custom-gpt-alt-tag-generator.txt, then use it in your model, IDE, or workflow tool. - Compare your result with the sample output when one is provided.
Frequently Asked Questions
How do I use Prompt to Custom GPT: Alt Tag Generator?
Open the prompt on Promptally, review the pre-filled example, then copy the template or download prompt-custom-gpt-alt-tag-generator.txt and paste it into your model, IDE or workflow tool. Prompt to Custom GPT: Alt Tag Generator is a static blueprint with no dynamic variables. Copy it and use it as-is.
Is Prompt to Custom GPT: Alt Tag Generator free?
Yes. Prompt to Custom GPT: Alt Tag Generator is free to view, copy and download on Promptally without creating an account. It is published under the MIT license.
What variables does Prompt to Custom GPT: Alt Tag Generator need?
Prompt to Custom GPT: Alt Tag Generator is a static blueprint with no dynamic variables. Copy it and use it as-is.