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Text & code prompt
Claude

Write Image Alt Text From Visible Details Only

Describe an attached image accessibly, separating visible details from guesses about identity, location, or meaning.

By Genius Forges EditorialUpdated Oct 11, 2026

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Before you paste

Paste the source below the prompt or attach the stated file in a platform that supports it. Use authorized, non-sensitive data. This website does not send attachments to the AI platform.

Your prompt

Inspect the image I attach. Draft one concise alt text sentence that describes the main subject, relevant action and spatial relationship. Do not infer a real person's identity, exact location, emotion or text you cannot read. If an image is a graph, list its visible labels and values separately rather than inventing data. Then provide a short uncertainty note for details that are unclear. Ask for the image if missing. Do not add "image of" unless it helps the context.

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Example result

**Illustrative example; not tested on the listed platform.** Alt text: Four black-and-white photobooth frames show a corgi with different head positions and expressions. Uncertainty: The strip does not identify a real pet or where it was photographed.

Illustrative example; not tested on the listed platform.

How to use this prompt

  1. 1Prepare the stated source or editable inputs.
  2. 2Run the prompt in your chosen compatible platform.
  3. 3Check the result against the original source before using it.

Tips & limitations

Worked sample (fictional): Attach the corgi example image from this batch, or an image you own. The listed platforms are compatibility suggestions; no platform test is claimed.

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Review evidence

Documentation-based review · 2026-10-11

Original editorial workflow. Provider facts were checked against the linked primary references; worked examples are fictional and illustrative, not observed platform tests.

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