Create and edit images in Optimizely Mark chat
Image generation is part of Mark (Optimizely Agent Platform). Mark chat generates original images from a text prompt and refines them in place. Produce visuals for blogs, campaigns, and social posts without leaving your chat.
Image features in Mark chat
Use Mark chat to create original images or make changes to existing ones by sending a request with a prompt and optional settings.
Create images
To generate an image, send Mark a prompt describing what you want to create. Also include the following optional parameters to customize the result:
- Prompt – Description of the image you want to generate. More detail leads to better results.
- Aspect ratio – Shape of the generated image. If not specified, Mark uses 1:1. Example aspect ratios:
- 1:1 (Square) – Good for profile pictures or Instagram posts.
- 4:3 (Standard landscape) – Common for older TVs or digital cameras.
- 16:9 (Widescreen landscape) – Standard for modern TVs, YouTube videos, and presentations.
- 9:16 (Vertical portrait) – Ideal for Instagram Stories, TikTok, and mobile content.
- Number of images – Total number of image variations to generate, up to four. If you do not specify, Mark generates one.
Note
Be as specific as possible in your prompt to get the best results. Include details such as style, lighting, background, or mood.
Example prompt – Using the brand knowledge you have for Optimizely, create three images for a header image for a blog on Optimizely.com about Mark?
Click Edit for an image to open Mark's Image editor. Use the image editor to refine the generated image without recreating it. Select an element, draw over an area, or outline a region with a shape to edit the image.
Start an image from a Brand Pack template
Start from an approved brand template to keep generated images on-brand. Select a published Brand Pack from the Add menu, and then choose a template. See Publish and use a Brand Pack for the steps.
Note
If you use Opti ID, administrators can turn off generative AI in the Opti ID Admin Center. See Turn generative AI off across Optimizely applications.