Guides
Everything on keeping a character or product consistent across AI videos: models, comparisons, use cases, tutorials and prompts.
Consistency6
- AI character consistency: diagnose the drift, then fix itA diagnostic guide to AI video character consistency: the six causes of drift, how to tell them apart by their symptoms, and the fix that matches each one.
- Consistent AI product video: keep the product the productHow to keep a product's shape, label, logo and color correct across AI video shots: why each one drifts, the references that hold it, and what to check.
- Consistent character AI video: the same face in every clipWhy AI video models change your character between clips, the three techniques that keep a face consistent, and a practical workflow for series, ads and stories.
- Multi-reference video generators comparedWhich AI video models accept several reference images at once, their limits as of October 2026, how this differs from image-to-video, and how to pick a tool.
- Reference to video: how it works and how to do it wellReference-to-video turns a few photos of a person or product into new scenes that keep that subject. How it works, which models offer it, and how to do it well.
- The same character in every video, clip after clipHow to keep one person identical across ten, fifty or a hundred AI video clips: what to lock, what to vary, how to check each clip and when to regenerate it.
Models2
- Kling 4 Omni Reference: one character, every shotWhat Kling 4 Omni Reference does, how multi-image references keep a character or product consistent, and how to prepare references that carry over to Kling 4.
- Kling 4 release date: app launch and API statusKling 4.0 launched in Kling's app on October 15, 2026, but its developer API is still coming soon. Key dates, fal.ai API pricing and what to do today.
Comparisons2
- Kling 4 vs Kling 3 Omni: what actually changesKling 4.0 vs Kling 3.0 Omni on clip length, reference limits, resolution, audio, price and API access as of October 2026, and which to use for consistent video.
- Kling 4 vs Veo 3.1 for consistent characters and productsKling 4.0 vs Google Veo 3.1 for reference video: reference limits, clip length, resolution, audio, API access and price as of October 2026, with a verdict.
Use cases2
- AI product videos where the product stays the sameHow brands make AI product videos where the bottle, shoe or device stays identical across shots: what to upload, a six-shot list, prompts and common pitfalls.
- AI UGC ads: one creator, many hooksMake UGC-style ads with one consistent AI creator: building the creator, hook variations, a 20-second ad structure, product shots and the disclosure rules.
How-to6
- How to choose reference images for AI videoHow to pick the best reference images from photos you already have: the five tests each image must pass, how to fill missing angles, and how many to keep.
- How to create a consistent character for AI videoA step-by-step method to design an AI video character, build a locked reference set, test it, and keep the same face and outfit across every clip that you make.
- How to fix face drift in AI videoFace changing between or within AI video clips? Diagnose the cause, from references to light, angle and clip length, and apply the fixes in the right order.
- How to make UGC ads with AIMake UGC-style video ads with AI: a recurring presenter, your real product, a hook-demo-CTA script, vertical settings, hook testing and honest disclosure rules.
- How to shoot product reference photos for AI videoA phone-friendly setup for product reference photos: light, backdrop, the angles to shoot, and how to handle shiny, clear and soft products for AI video work.
- How to write scene prompts for reference videoA five-part prompt structure for reference-to-video: setting, action, camera, light and ending, with worked examples and the words to leave out of the prompt.