Featured
- Updated
- August 1, 2026
- Reading time
- 7 min read
How to create an AI thumbnail: from brief to final file
A practical process for turning a content idea into clear, consistent AI thumbnails that are easy to review.
Read articleSpark blog
5 published guides
Guides to thumbnails, copy, and art direction
Editorial guides for turning a brief into a clear image, comparing visual directions, and publishing with human review.
All guides
- How to choose thumbnail text without overcrowding the imagePractical criteria for writing, prioritizing, and reviewing thumbnail text with clarity, contrast, and editorial consistency.6 min read
- Thumbnail sizes for different platformsA guide to the formats available in Vistral Studio Spark and the composition considerations involved in adapting a thumbnail to each aspect ratio.6 min read
- How to compare thumbnail variations using clear criteriaA comparison method for choosing among variations without relying solely on personal taste or performance predictions.7 min read
- Art direction in Spark: how to guide visual generationHow to turn a title, platform, references, and visual preferences into objective art direction within Vistral Studio Spark.7 min read