All the images I uploaded to Adobe stock were rejected as similar content. Why is that? I didn't copy anyone's images.

If you’re relying entirely on AI to create content for Stock, millions of other customers probably use the same AI service, trained on the same source data. AI generates content with homogenous qualities, similar faces, clothes, skin, makeup, hair & body types. After a while, all AI starts to look the same unless you add your own unique talents to the artwork.

Hope that helps.

You’re competing with over 900 million assets in Stock inventory. 

There’s not much that hasn’t been submitted already. 

Always compare your work with competing content to see if yours is better & more unique than what Stock is selling.

For better answers, we need to see one or two rejections.

Adobe Stock already has a huge number of assets registered.

If the title and keywords are not set appropriately, it will not appear in search results.
If your submission is rejected due to similar content, please set the title and keywords appropriately and resubmit.
If it doesn't appear high in search results, it won't sell.

This is a frequent complaint. With nearly 450 million AI assets in the database, it becomes increasingly difficult to create unique content.

We have often reported here in the forum that we are not certain what the criteria is for this rejection.
It might be:

-- you have similar assets in your portfolio,

-- there are maybe similar assets in the database,

-- metadata is similar to other assets,

-- there are too many assets in this genre and not enough demand

Be careful when using AI and similar prompts. You may get accused of “spamming” which may result in an account suspension.