AI Video Generation: A Complete Guide

By Character App Team · · Updated · 12 min read

AI video generation has evolved rapidly. This comprehensive guide covers every major model available in 2026, how to choose between them, and how to get the best results from each.

The state of AI video generation in 2026

AI video generation has gone from novelty to production-ready in under two years. Models like H3, Wan 3.0 and Seedance 2.5 now produce cinematic quality output with features like native audio and high-resolution output.

But the landscape is fragmented. Each model has different strengths, pricing, and limitations. This guide helps you navigate the options and choose the right model for your project.

The default Clip model in Character App

Since 3 November 2026, new Clips in Character App start on HG H3 Max, a reference-to-video model: it films your saved Character from its reference picture instead of inventing a new person from the prompt. H3 Turbo, the model behind Star in a clip (your Character in your own clip of up to 30 seconds, with the same moves and camera), is a pick at its own rate.

Best for: everyday Clips of a recurring Character, quick takes, and your own footage with Star in a clip.

Credit cost: a low per-second rate; a five-second Clip is 25 Credits as of November 2026, and the exact price is on the button before you press.

Seedance 2.5 (ByteDance)

Seedance 2.5 is ByteDance's current Seedance model. In Character App (web, plan members) it films 4 to 10 second single Clips of a saved Character from up to 9 reference pictures. It cannot film a Story or an Episode yet, and it may refuse a photo-real face (a refused Clip is refunded).

Best for: a premium single Clip where its finish is worth the price.

Credit cost: 11 Credits a second at 480p, the default (a 5-second Clip is 55 Credits), or 25 at 720p. The exact price is on the button before you press.

Wan 3.0 and the other live models

Wan 3.0 (12 Credits a second) and Wan 3.0 Prime (15) are the picks for motion in single Clips. H3 Max (10) and Gemini Flash (10) can also film whole Stories and Episodes. Each shows its price on the button.

Best for: movement-heavy single Clips (Wan 3.0), or a sharper Story Film (H3 Max).

Retired models: Seedance 2, Kling and LTX

Character App retired Seedance 2, Kling and LTX on 28 October 2026, so none of them can be picked for a new Clip. Clips made with them keep their label. Sora is not offered either.

How to choose the right model

The model selection depends on your use case and budget:

The character consistency problem

The biggest gap in AI video generation is not model quality — it is character consistency. Every model generates each clip independently, so your character looks different in every scene.

A reusable Cast reference gives compatible supported models the same identity anchor. That can reduce drift, but no model guarantees an identical character in every Scene.

Credit-based pricing explained

Most AI video generators use Credit-based pricing. At Character App, Credits are consumed per-second for most models, with some using flat pricing per clip, and every paid action shows its exact Credits price before you confirm.

Paid plans run from 800 Credits/month (Starter, $19.99) through 1,600 Credits/month (Creator, $39.99) to 4,000 Credits/month (Pro, $99.99), and a free tier covers a handful of daily Images so you can build a cast before committing to video.

The key strategy: use a lower-cost current model for drafts, then choose a higher-cost model only for selected final Scenes. The exact quote is authoritative.

Vertical, episodic AI video is the emerging format

The most visible use of AI video in 2026 is not one-off clips — it is vertical drama. Creators are using these models to produce episodic 9:16 series in the same soap-opera-paced, cliffhanger-driven style that streaming apps popularized, but made independently rather than by a studio.

This shifts what you should optimize for. A standalone clip only has to look good once; an episodic series needs a cast that stays consistent across dozens of chapters and a way to render every shot vertically. The models above supply the raw generation, but the format is won by whichever workflow keeps characters recognizable and lets you direct scene by scene.

If your goal is a series rather than a single video, plan around consistency and vertical framing from the first render, not as an afterthought.

Getting started with AI video generation

A practical path is: (1) create a Cast reference, (2) plan your Story Scene by Scene, (3) draft with a lower-cost current model, and (4) choose a higher-cost model only for selected Scenes.

This workflow prevents wasted Credits, maintains character consistency, and produces cinematic output without trial-and-error prompting.