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GAGA-1

Holistic AI Actor Video Generation Model

GAGA-1 is an innovative video generation model developed by Gaga AI (SandAI Pte. Limited). Its core innovation lies in the unified co-generation of voice, lip-sync, and facial expressions within a single pipeline, rather than generating them separately and stitching them together. This dramatically improves video synchronization, emotional expression, and realism.

โœจ Key Features

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Synchronized Voice & Lip-Sync Generation

Eliminates the traditional "good audio but slightly misaligned lips" problem, achieving perfect audio-visual synchronization.

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Micro-Expression Capture

Precisely captures subtle movements of eyes, eyebrows, and mouth corners, making digital humans more realistic and lifelike.

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Context-Aware Emotion Recognition

Automatically adjusts avatar tone and expressions based on content emotion (formal speech, lyrical narration, advertising, etc.).

๐Ÿš€ GAGA-1 Pro Latest Features

The Pro version introduces breakthrough features, providing more powerful tools for enterprises and creators

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Voice Reference Technology

Users can upload custom voice samples, and the generated digital human can match the "voice characteristics" of that sample, such as brand spokesperson tone or voice personification, achieving true personalized customization.

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Multi-Aspect Ratio Output

In addition to traditional 16:9 landscape mode, the new version supports 9:16 (portrait) mode, perfectly adapting to mobile and social media platforms (TikTok, Douyin, Instagram Reels).

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Faster Generation & Higher Quality

GAGA-1 Pro improves rendering speed and detail quality compared to the base version, making batch production of digital human videos more efficient, with support for up to 4K resolution output (Beta).

๐Ÿ”ง Technical Details

Input & Output Format

๐Ÿ“ฅ Input Parameters

  • source: Input image (URL / Base64), recommended โ‰ฅ 512ร—512
  • audio: Audio file (.mp3 / .wav)
  • text: Optional text, system auto-generates voice
  • voice_id: Custom voice sample (Pro)
  • ratio: Aspect ratio (16:9 / 9:16)
  • resolution: Resolution (720p / 1080p / 4K)
  • emotion_mode: Emotion mode (neutral / happy / formal / sad)

๐Ÿ“ค Output Result

{"id": "gen_73b82a9c",
  "model": "gaga-1-pro",
  "status": "completed",
  "video_url": "https://cdn.gaga.art/...",
  "duration": 12.5,
  "resolution": "1080p",
  "ratio": "16:9"
}

Generation time: 30 seconds - 2 minutes (depending on length & resolution)

Performance Comparison

FeatureGAGA-1GAGA-1 ProDescription
Rendering Speed1ร—1.5ร—Improved inference engine
Max Resolution1080p4K BetaPro supports 4K output
Emotion Recognition90%96%Based on Semantic Emotion Vector (SEV)
Multi-languageโœ…โœ…20+ languages (EN/CN/ES/FR, etc.)
Portrait OutputโŒโœ…Optimized for short-video platforms

API Example

curl https://api.gaga.art/v1/generations \
  -H "Authorization: Bearer sk-xxxxxx" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gaga-1-pro",
    "source": "https://example.com/photo.jpg",
    "audio": "https://example.com/voice.mp3",
    "resolution": "1080p",
    "ratio": "9:16",
    "emotion_mode": "formal",
    "voice_id": "brand_voice_001"
  }'

๐Ÿ—๏ธ Technical Architecture

GAGA-1 is based on a Multimodal Transformer Architecture, integrating the following core modules:

๐ŸŽต AudioEncoder

Extracts acoustic features and semantic rhythm from audio

๐Ÿ‘๏ธ VisualDecoder

Generates frame-by-frame facial movements

๐Ÿ˜Š EmotionRegressor

Infers emotion vectors based on semantic context

๐ŸŽฌ DiffusionVideoSynthesizer

Generates video frames using diffusion models

โฑ๏ธ TemporalConsistencyNet

Ensures smooth inter-frame motion transitions

๐Ÿ’ผ Application Scenarios

๐Ÿ“น

Short Video Creation

Rapidly generate TikTok, Douyin, and Reels content

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Online Education

Create AI instructors for course delivery

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Brand Marketing

Virtual spokespersons and brand content distribution

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Multi-language Localization

Batch generate multi-language video versions

Application Value

  • โœ… Content Consistency: Enterprises/brands can use the same "digital human" for multi-channel distribution (landscape + portrait)
  • โœ… Efficiency Boost: Faster rendering + less post-production correction, reducing production costs
  • โœ… Personalized Customization: Upload voice samples to enhance brand or character recognition
  • โœ… Mobile-First: Portrait mode perfectly adapts to social media scenarios

๐Ÿ”ฎ Future Outlook

Future versions (potentially named GAGA-2) may introduce the following capabilities:

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Full-Body Motion Generation

Full-Body Synthesis, beyond facial expressions

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Real-Time Inference

Real-Time Avatar supporting live interactions

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Text-Driven Performance

Text-to-Performance, generating performances directly from scripts

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Streaming Integration

Integration with WebRTC / OBS for real-time digital human live streaming

GAGA-1

Holistic AI Actor ยท Unified Voice, Lip-Sync & Expression Generation

GAGA-1 Pro has become one of the most production-ready AI digital human models available today. It not only improves lip-sync and emotion synchronization accuracy, but also provides more flexible and scalable digital video solutions for content creation and brand marketing through Voice Reference, multi-aspect ratio support, and open API access.