TL;DR: ViMax is an open-source agentic video generation framework that acts as director, screenwriter, producer, and video generator all-in-one. Input your concept, and it orchestrates scriptwriting, storyboarding, character creation, and final video generation—all end-to-end.
The Problem with Current AI Video Generation
Current AI video generation tools face significant limitations:
| Challenge | Description |
|---|---|
| Limited to Short Clips | Most AI tools generate only seconds of footage |
| Consistency Chaos | Characters and scenes change unpredictably across frames |
| Visual-Only Focus | Missing scripts, audio, narrative structure, and storytelling depth |
| Manual Reference Management | Time-consuming acquisition and alignment of reference frames |
| No Production Pipeline | Each step requires separate tools and manual intervention |
ViMax solves all of these by automating the entire video creation pipeline from narrative input to final video output.
What is ViMax?
ViMax is a multi-agent video framework that enables automated multi-shot video generation while ensuring character and scene consistency. The system seamlessly translates your ideas into corresponding videos, allowing you to focus on storytelling rather than technical implementation.
With 5.6k GitHub stars and growing, it represents one of the most comprehensive open-source approaches to agentic video generation.
Key Features
Idea2Video
From Spark to Screen
Transform raw ideas into complete video stories through intelligent multi-agent workflows automating storytelling, character design, and production.
idea = """
If a cat and a dog are best friends, what would happen when they meet a new cat?
"""
user_requirement = """
For children, do not exceed 3 scenes.
"""
style = "Cartoon"
That's all you need to generate a complete video.
Novel2Video
Smart Literary Adaptation Engine
Transform complete novels into episodic video content with:
- Intelligent narrative compression
- Character tracking across chapters
- Scene-by-scene visual adaptation
- Retention of key plot developments and dialogues
Script2Video
Unlimited Screenplay Video Creation
Write any screenplay from personal stories to epic adventures, giving you complete control over every aspect of your visual storytelling.
script = """
EXT. SCHOOL GYM - DAY
A group of students are practicing basketball in the gym.
John (18, male, tall, athletic) is the star player...
John: (dribbling the ball) I'm going to score a basket!
Jane: (smiling) Good job, John!
"""
user_requirement = """
Fast-paced with no more than 20 shots.
"""
style = "Animate Style"
AutoCameo
Generate Video from Your Photo
Create your own cameo video—become the star who appears across limitless creative scripts, cinematic sequences, and interactive storylines by uploading your photo.
Technical Architecture
Multi-Agent Pipeline
ViMax operates through a sophisticated multi-agent system:
🧠 INPUT LAYER
├── Ideas & Scripts & Novels
├── Natural Language Prompts
├── Reference Images
├── Style Directives
└── Configs
🧭 CENTRAL ORCHESTRATION
├── Agent Scheduling
├── Stage Transitions
├── Resource Management
└── Retry/Fallback Logic
🧾 SCRIPT UNDERSTANDING
├── Character/Environment Extraction
├── Scene Boundaries
└── Style Intent
🎥 SCENE & SHOT PLANNING
├── Storyboard Steps
├── Shot List
└── Key Frames & Beats
🧪 VISUAL ASSET PLANNING
├── Reference Image Selection
├── Look/Style Guidance
└── Prompt Conditioning
♻️ CONSISTENCY & CONTINUITY
├── Character/Environment Tracking
├── Ref Matching
└── Temporal Coherence
✂️ VISUAL SYNTHESIS & ASSEMBLY
├── Image Generation
├── Best-Frame Selection
├── First/Last-Frame→Video
└── Cut & Timeline Assembly
🚀 OUTPUT LAYER
└── Final Video
Technical Capabilities
| Capability | Description |
|---|---|
| Intelligent Long Script Generation | RAG-based engine that analyzes lengthy stories and segments them into multi-scene script format |
| Expressive Storyboard Design | Shot-level storyboard design using cinematography language based on user requirements |
| Multi-camera Filming Simulation | Delivers immersive viewing while maintaining character positioning and backgrounds |
| Intelligent Reference Selection | Automatically selects reference images from previous timeline to ensure consistency |
| Automated Image Generation | Generates prompts to arrange spatial interaction between characters and environment |
| Consistency Check | Uses MLLM/VLM to select best consistent image from parallel generations |
| Parallel Shot Generation | Enables highly efficient video production across multiple shots |
Why ViMax?
| Benefit | Description |
|---|---|
| Effortless Production | One-prompt to finished video—skip the technical complexity |
| Complete Creative Freedom | No limits—trailers, short stories, novel chapters, or original concepts |
| Audio and Video Binding | Seamlessly integrate character voice and sound effects |
| Professional Quality | Automated quality control ensures consistency across every frame |
| Interactive Video | Make your own cameo—interact in your own short stories |
Quick Start
Prerequisites
- OS: Linux, Windows
- Python with uv package manager
Installation
git clone https://github.com/HKUDS/ViMax.git
cd ViMax
uv sync
Configuration
Configure your models in configs/idea2video.yaml:
chat_model:
init_args:
model: google/gemini-2.5-flash-lite-preview-09-2025
model_provider: openai
api_key: <YOUR_API_KEY>
base_url: https://openrouter.ai/api/v1
image_generator:
class_path: tools.ImageGeneratorNanobananaGoogleAPI
init_args:
api_key: <YOUR_API_KEY>
video_generator:
class_path: tools.VideoGeneratorVeoGoogleAPI
init_args:
api_key: <YOUR_API_KEY>
working_dir: .working_dir/idea2video
Using MiniMax as Chat Model Provider
MiniMax offers OpenAI-compatible API access to models with up to 1M token context:
chat_model:
init_args:
model: MiniMax-M2.7
model_provider: minimax
api_key: <YOUR_MINIMAX_API_KEY>
| Model | Context | Note |
|---|---|---|
| MiniMax-M2.7 | 1M tokens | Latest, recommended |
| MiniMax-M2.7-highspeed | 1M tokens | Fast variant |
| MiniMax-M2.5 | 204K tokens | Stable |
| MiniMax-M2.5-highspeed | 204K tokens | Fast variant |
Solving Production Challenges
ViMax addresses the core challenges of AI video production:
Reference Images
Problem: Time-consuming acquisition, organization, and alignment of reference frames. Solution: Intelligent reference image selection from previous timeline ensures accuracy of characters and environments.
Consistency Check
Problem: Image generators may produce unusable images even with correct references. Solution: Parallel image generation with MLLM/VLM-based selection of best consistent image.
Scripts Generation
Problem: Professional videos need rich information density and structured design. Solution: RAG-based long script design engine that preserves key plot developments and dialogues.
Storyboard Design
Problem: Converting stories into visual narratives requires cinematography expertise. Solution: Automated shot-level storyboard design using cinematography language.
Shot Design
Problem: Creating coherent camera work with proper angles and transitions. Solution: Multi-camera filming simulation with consistent character positioning.
Development Delays
Problem: Ensuring consistency across hundreds of shots in long-form content. Solution: Character/environment tracking with temporal coherence across all frames.
Production Efficiency
Problem: Traditional video creation involves multiple specialists and lengthy workflows. Solution: One-prompt to finished video with automated quality control.
Scaling AI Video
Problem: AI videos are usually only seconds long; long videos require complex continuity. Solution: Multi-storyboard design with cross-scene continuity processing.
Demo Examples
ViMax can generate complete videos from scratch including:
- Cat and dog friendship stories
- Underwater exploration scenes
- Otter adventures
- Aircraft carrier sequences
- Vampire narratives
- Skydiving action
- Tree growth timelapses
- AutoCameo sky castle scenes
- AutoCameo pet interactions
Coming Soon
- Google AI Studio API config ✅
- Dev mode branch
- AutoCameo integration
- Enhanced shot planning
- New features
Repository Stats
- Stars: 5.6k
- Forks: 943
- Contributors: 9
- License: MIT
- Language: Python 100%
Getting Started Resources
- GitHub: github.com/HKUDS/ViMax
- Documentation: README and Communication.md in repository
- Example Configs:
configs/idea2video.yaml,configs/script2video.yaml
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This post covers ViMax as of May 2026. The project is actively developed with new features being added. Visit the GitHub repository for the latest updates.