Scope note: This article explains the topic using public research and common engineering patterns. Retrieval, reranking, generation, and source-selection pipelines vary by product. Nothing here represents a disclosed universal ranking weight or a citation guarantee.
Images, video, and text jointly communicate page information. High-quality media can improve user understanding and create additional opportunities in image- or video-enabled search features, but ALT text or video does not guarantee a higher AI citation rate.
The primary purpose of ALT text
ALT text primarily supports accessibility and describes the image’s informational role. It should not be used for keyword stuffing or for claims not present in the image.
How media can strengthen evidence
Original charts, demonstrations, and experiment videos can provide information that prose cannot. Important claims, parameters, and methodology should still appear in visible text so they are not locked inside an image.
Practical implications for content teams
- Write accurate ALT text for informative images.
- Provide titles, descriptions, captions, or transcripts for video.
- Use text and media as complementary formats, not as fabricated independent sources.
Boundary and conclusion
Multimedia expands communication and search-display opportunities; how a specific AI product uses it varies by implementation.
References
- https://developers.google.com/search/docs/fundamentals/ai-optimization-guide
English ▾
Chinese (Simplified)