The easiest MiniMax H3 text-to-video: AI writes your prompt, then a 2x upscale sharpens the AI video. Audio included.
MiniMax H3Text → 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. Type a short idea, let Gemini 3 Flash write the full prompt, and get an upscaled clip at the end.
Great for:
Polished AI influencer and character clips with minimal effort
Cartoon and animated shorts
Testing many video ideas quickly
How it works
Add your OpenRouter API key.
Type a short idea.
Run it. You get the base video and a sharper 2x upscaled version, both with audio.
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