AutoAlt.ai vs Caseo

AutoAlt.ai uses AI to generate contextual alt text for product and website images, with SEO and accessibility compliance in scope. Its AI recognizes categories, brands, colors, and attributes and can incorporate relevant long-tail keywords. The service supports more than 120 languages, bulk upload, plugins, and API access. The Developer API accepts image URLs or Base64 images, along with SEO keywords, custom prompts, writing styles, and language choices. Listed integrations include Shopware, WordPress/WooCommerce, Drupal, Joomla, Magento, Shopify, PrestaShop, TYPO3, Chrome, and Firefox. The documentation says images are processed but not stored; the homepage says image data alone is sent to OpenAI and Google for processing, without personal data or metadata. Supported formats include JPG, JPEG, PNG, WebP, SVG, HEIC, GIF, BMP, and AVIF; each image must be under 16 MB and at least 50×50 pixels. One image uses one credit regardless of format or translation count, while unused paid credits roll over without expiring. Plans include 50 monthly credits free and paid tiers from $4.49 a month.

Caseo is a Shopify app for generating image alt text and SEO content for online stores. Its AI uses product images together with product data to create alt text for screen readers and search engines. It can bulk-generate meta titles and descriptions for products, collections, and blog posts, and generate or revise product descriptions to match a store’s tone. Generated material can be reviewed and edited individually, or checked in bulk before it is applied. Each image alt text, meta title, meta description, or product description uses one credit, deducted when generation happens. Caseo lists English, Spanish, French, Portuguese, Italian, German, Dutch, and Lithuanian. It writes fields through the Shopify Admin API and says it does not alter theme code or affect page-load speed. The free plan includes 50 credits, a full store scan, and all features unlocked within a 15-day trial window, with no card required. One-time credit packages start at 9.00 USD; purchased credits remain valid for 365 days. A 30-day money-back guarantee applies to unused credits.