Consistent AI characters in video: give MiniMax H3 image, video or audio references and let AI write the prompt. Sound included.
MiniMax H3Image, Video, Text → Video, AudioAdvanced
MiniMax H3 is an open AI video model that generates video with sound in one pass: voices, sound effects and ambience come out already synced to the picture. Add images, video or audio of your character as references, type a short idea, and Gemini 3 Flash writes the prompt.
Great for:
Consistent AI influencer videos across many posts
Recurring cartoon and anime characters
Reusing a voice or motion from a reference clip
How it works
Add your OpenRouter API key.
Add your image, video or audio references.
Type a short idea and run it.
Make it yours with LoRAs
This workflow supports LoRAs. Grab character, style, anime or cartoon LoRAs from CivitAI or Hugging Face, drop them into the LoRA loader, and keep your AI character looking the same in every shot.
Recommended settings6
GPU
H100
H200
RTX PRO 6000
RTX 5090
Sampler
euler
res_multistep
Scheduler
simple
Turbo LoRA
LightX2V 8-step turbo LoRA
Steps
8 with the turbo LoRA at full strength
10-12 with the turbo LoRA at lower strength for better quality
Hugging Face