From Chat to Image to Video: How to Design a Multimodal AI Character Experience

Description and use

Unifying chat, image, and video AI workflows around a single structured character profile improves consistency and simplifies UI design.

Problem

Ensuring a single AI character feels consistent across chat, image, and video generation workflows.

Outcome

Unified character experience reduces user friction, improves consistency across modalities, and simplifies UI design by abstracting prompt engineering.

Workflow

• Create structured character profile
• Store profile in persistent store
• Use profile data in chat, image, and video pipelines
• Generate prompts dynamically from UI selections
• Attach generated assets to character via characterId
• Handle video generation as async job with status polling

Evidence

When building an AI companion product, the real challenge is making all of these models feel like they are interacting with the same character.

Source

Instead of storing the character as one giant prompt, use structured data.

Source

Every generated asset should reference its originating character.

Source

Video generation is different. It can take significantly longer depending on the model.

Source