How much does it cost to write alt text for your images with AI? Type how many images you have: the first table is what your own AI provider would bill you (bring your own key), the second is what alt text subscriptions charge for the same images.
| Provider / model | Per image | Your images |
|---|
Estimate per image: the tokens the provider's vision docs count for a 1024×768 image plus a ~100-token instruction and a ~40-token alt text, at the provider's list price per million tokens. Prices checked on 30 September 2026 on the providers' official pricing pages (linked). Free tiers have rate limits; big libraries take longer, not more money.
| Service | Plan needed | Your images |
|---|
Plans as published on the AltText.ai, ImageSEO and Alt Magic pricing pages on 30 September 2026 (Alt Magic at its advertised discount). One credit is one image; shown is the cheapest plan, repeated as many times as your images need.
A vision model reads an image for a fraction of a cent. Subscriptions resell the same models by the credit, with a margin and a monthly minimum. If you run WordPress, Alt Text BYOK writes the alt text on upload and in bulk with your own key: free on wordpress.org with no image limit, $24.99 once for the full version (post content sync, WP-CLI, WooCommerce).
Compare in detail: vs AltText.ai · vs ImageSEO · vs Image Alt Text · not sure how many images lack alt text? Alt Text Audit.