Key Takeaways
- Assume the words around an image do the work. When an AI assistant searches the web to answer a question, the reliable part of an image is the text attached to it: the alt text, the caption and the sentences beside it.
- Write alt text as one plain sentence. Say who or what is in the picture and why it matters, such as "Maya Ortiz, executive coach for first-time managers, in her Denver office", not "headshot".
- Use captions for facts you want repeated. A caption is visible to every reader and sits right under the image, so it is the best place for a date, a number or a client type.
- Never put proof only inside a picture. A screenshot of a testimonial or a price list saved as an image hides the words. Put the quote and the price on the page as text, and keep the image as decoration if you like it.
- Leave decorative images empty on purpose. A background pattern or a stock photo of a laptop needs an empty alt attribute, so screen readers and text readers skip it instead of reading noise.
Most coaching websites lean on pictures. A friendly headshot, a photo from a workshop, a row of client logos, a screenshot of a glowing review. They make the site feel real to a visitor.
The question is what an AI assistant gets from them. If a buyer asks ChatGPT for a coach in your city, does the photo of you on stage count for anything, or is it invisible?
Below is the plain answer to whether AI assistants read images, what alt text and captions are for, which images tend to hide your best facts, and how to fix them in an afternoon.
Do AI assistants read images?
AI assistants can read images you hand them directly, but when they search the web to answer a buyer's question they mostly work from the words on the page. For an image on your website, the words attached to it are the part you can count on.
Those words come in three places: the alt text stored with the image, the caption printed under it, and the sentences around it. If all three are empty, the image may still look great to a visitor and say almost nothing to a tool working from text.
So the practical rule is simple. Treat every image as decoration unless it has a sentence attached that would make sense on its own.
What an assistant actually gets from an image
What an assistant gets from an image on your site is mostly the text attached to it. Google says plainly how its own systems do it, and that is the clearest public description we have.
Google's guide to image best practices in Search says Google uses alt text along with computer vision and the contents of the page to understand what an image shows. It also says Google pulls information about an image from the page, including captions and image titles, and that the filename gives only very light clues.
That matters for AI answers because Google's page on AI features in Search says AI Overviews and AI Mode follow the same fundamentals as the rest of Search, with no special requirements. Other assistants publish less about how they treat images on a page, so the safe assumption is the same one: the words do the work.
What alt text and captions are for
Alt text describes an image for people and tools that cannot see it, and a caption states a fact about the image for everyone. Alt text is hidden in the code; a caption is printed on the page.
The accessibility guidance from the W3C's images tutorial is the standard here: an image that carries information needs a text alternative that conveys that information, and a purely decorative image gets an empty one. Write for a person who cannot see the picture and you have written for a text reader too.
The figure below shows five made-up images from a made-up Denver executive coach's website, and the text each one leaves behind.
- HeadshotAlt text
Maya Ortiz, executive coach for first-time managers, in her Denver office
- Testimonial screenshotAlt text
Nothing
- Workshop photoCaption
Leading a workshop for 40 first-time managers at a Denver nonprofit
- Client logo stripAlt text
logos
- Pricing graphicAlt text
Nothing
2 of 5 images leave a full sentence behind
Read the strip as a text reader would. The headshot says who the coach is, who she serves and where. The workshop caption adds a number and a client type. The logo strip says "logos", which tells nobody anything. The testimonial and the price list, the two images holding her strongest facts, leave nothing at all.
| Image | Usual text attached | What a text reader gets | What to write instead |
|---|---|---|---|
| Headshot | "headshot" or the filename | Almost nothing | Alt text with your name, who you serve and your city |
| Testimonial screenshot | None | Nothing | The quote, first name, role and result as page text |
| Workshop or event photo | None | Nothing | A caption with the group, the size and the date |
| Client logo strip | "logos" | A word with no facts | A sentence naming the kinds of clients and what you did |
| Price list or package graphic | None | Nothing | The prices and what each package includes as page text |
| Decorative image | A long keyword-stuffed description | Noise | An empty alt attribute, so it is skipped |
The images that hide your best facts
The images that hide your best facts are the ones made of words: testimonial screenshots, price graphics, certificates and results charts. They hold exactly the details an assistant would need to recommend you, locked inside a picture.
The W3C guidance says to avoid images of text other than logos, and when you do use one, to repeat the same words in its text alternative. For a coach, that usually means the most persuasive part of the site is the least readable part.
Client logos are a close cousin. A row of logos tells a visitor you have worked with real companies, but a text reader sees a word or nothing. Why that is a weak signal even when it is labeled is covered in why client logos don't count as proof to AI. The same problem shows up in files: do AI assistants read PDFs and slides covers the lead magnet and the slide deck.
How to fix your images in one afternoon
You fix your images by listing every one that carries a fact, then giving each a sentence in text: alt text for what it shows, a caption for a fact you want repeated, and page text for anything a buyer needs to read.
- List every image on your home, about and services pages. Mark each one as decoration or information. Most sites have fewer than 20 that matter.
- Rewrite the alt text on the information images. One plain sentence each: who or what, for whom, where. Skip "image of" and skip stuffing in search phrases.
- Add captions to event and work photos. The group, the size, the date. "Workshop for 40 first-time managers, March 2026" is a fact; "Fun day!" is not.
- Move words out of pictures. Type out every testimonial, price and credential that currently lives only in an image.
- Empty the alt text on decoration. Patterns, dividers and generic stock photos get an empty alt attribute.
Testimonials deserve the most care, because they are your proof. How to write them so a text reader can use them is in how to make client results legible to AI.
The damaging admission: fixing your images will not get you recommended by itself. Alt text and captions make the facts you already have readable. If your site never says who you serve or what clients got, better alt text has nothing to carry.
To see whether ChatGPT names you today, start with the free check. It asks ChatGPT 25 real buyer questions from your niche at $0 and emails a plain-English readout: your score, who got named in your place, and the one fix to start with. It runs as soon as you ask for it, and the report lands within the hour between 7am and 5pm Central, or by 10am the next morning outside those hours.
Questions we hear the most
Do AI assistants read images?
Some can look at an image you upload to them directly, but when an assistant searches the web to answer a question it mostly works from the words on the page. The words attached to an image, its alt text and caption, are the part you can count on.
What is alt text?
Alt text is a short written description stored with an image in your website's code. Screen readers read it aloud to people who cannot see the picture, and search tools use it to understand what the image shows.
Is a caption better than alt text?
They do different jobs, so use both where it matters. Alt text describes the image for people and tools that cannot see it, while a caption is visible to everyone and is the better place for a fact you want repeated, such as a date or a client type.
Should I post testimonials as screenshots?
Not as the only copy. A screenshot hides the words inside a picture, so put the quote, the client's first name and role, and the result on the page as text. Keep the screenshot beside it if it looks good.
Does every image on my site need alt text?
Every image that carries information does. A purely decorative image, such as a background pattern, should have an empty alt attribute so screen readers and text readers skip it rather than reading something meaningless.
Will the AnswerHalo free check tell me if my images are hiding facts?
Not directly. The free check asks ChatGPT 25 real buyer questions from your niche, costs $0, and emails a plain-English readout of whether you are named, who got named in your place, and the one fix to start with. It does not inspect your images one by one.
How fast do I get the AnswerHalo free check results?
It runs as soon as you ask for it. The report lands within the hour between 7am and 5pm Central, or by 10am the next morning outside those hours.
Your buyers are already asking. Find out what AI tells them.
The free check asks ChatGPT 25 real buyer questions about your niche and sends you the report within the hour, at $0. If it shows you are already getting named everywhere, we will say so in plain words.
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