How to Auto-Generate Alt Text and Captions with Strapi AI Media Library

Strapi 5’s AI Media Library can generate editable alternative text and captions for supported image files during upload and, from version 5.34 onward, can retroactively process existing images missing metadata. Available only to Growth-plan users running version 5.30 or later, the feature uses shared monthly AI credits, continues through paid overages after the allowance is exhausted, and offers usage notifications but no published per-image cost or hard spending cap. Automated metadata can help reduce accessibility and SEO gaps associated with missing, generic, or filename-based alt text, but generated output requires editorial review because models may miss page context, make inaccurate assumptions, or describe decorative images that should have empty alt attributes. The upload workflow opens a review modal where editors can revise generated fields before saving, while the beta backlog tool processes images missing metadata in bulk, making credit planning and prioritizing high-value assets important. Strapi states that AI requests are processed through its infrastructure and sent to third-party AI providers, so organizations with sensitive-content or data-residency requirements may need additional clarification before enabling the feature.

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