Breakthrough Capabilities
BeatFusion generates full-length songs with natural vocals and rich instrumentation from lyrics and a style description
More natural-sounding singing with realistic timbre, breathing patterns, and smooth pitch transitions that rival human vocal performances
Expanded sound library including orchestral and traditional instruments, with cleaner separation between vocals and accompaniment
14+ section tags let you control exactly how the song is arranged — verse, chorus, bridge, intro, outro, and more for complete creative control
The model automatically adjusts mixing characteristics based on genre — rock distortion, jazz warmth, electronic transients, and more
Generate complete songs up to 5 minutes with vocals, instrumentation, and proper song structure from start to finish
Broadcast-ready stereo audio at up to 44.1kHz sample rate with configurable bitrate up to 256kbps in MP3, WAV, or PCM formats
BeatFusion Model Family
Choose the right BeatFusion model for your song production and creative needs
BeatFusion Standard
Our foundational song generation model delivers high-quality songs with vocals from lyrics and style prompts, with broad genre coverage and fast generation.
- 1.5B parameter transformer architecture
- 32kHz stereo output quality
- Up to 2 minutes per song
- 100+ genre and style coverage
- Available via API and Console
BeatFusion Standard
Lyrics-to-Song Generation
Full Songs from Lyrics
BeatFusion generates professional-grade songs with vocals and instrumentation that rival human-produced tracks. Give it lyrics and a style description, and it produces full-length songs with natural singing, proper song structure, dynamic range, and emotional depth across any genre.
Full arrangements
Crystal-clear audio
Broadcast ready
Stereo mastering
BeatFusion handles complex vocal harmonies, realistic breathing patterns, and smooth pitch transitions alongside rich multi-instrument arrangements. Style-aware mixing automatically adjusts characteristics based on genre — rock distortion, jazz warmth, electronic transients — while 14+ section tags give you precise control over song structure.
Powering Creative Industries
See how BeatFusion is transforming music production and audio content creation across industries
Generate custom soundtracks, background scores, and mood-specific compositions for film and TV productions — from tense thrillers to uplifting documentaries.
Create adaptive, loopable game soundtracks that respond to in-game events. Generate ambient music, battle themes, and menu tracks at scale.
Produce royalty-free jingles, brand soundscapes, and commercial music on demand — perfectly matched to brand identity and campaign mood.
Generate intro/outro music, background ambiance, and transition sounds for podcasts, YouTube videos, and social media content.
Produce unique loops, beats, and melodic phrases for music producers. Create custom sample packs in any genre or style instantly.
Generate immersive audio for VR/AR experiences, interactive installations, and spatial computing applications with full stereo depth.
Integrate BeatFusion into Your Workflow
Our developer-friendly API makes it simple to add BeatFusion's song generation capabilities to your applications, games, and creative tools.
RESTful API
Simple HTTP requests returning streaming audio or signed download URLs for seamless integration
Client Libraries
Official SDKs for JavaScript, Python, Ruby, and Go with built-in audio streaming support
Webhooks & Streaming
Real-time audio streaming via WebSocket and webhook notifications for async generation workflows
// Generate a song with BeatFusion 2.0
const music = await skytells.predict({
model: "beatfusion-2.0",
input: {
lyrics: "[verse] Under neon lights we chase the dawn...",
prompt: "indie pop, dreamy synths, upbeat",
sample_rate: 44100
},
await: true
});Advancing AI - BeatFusion Model Card
Detailed specifications and performance characteristics for research and development
Model Overview
Hybrid multimodal generative audio architecture with transformer-based music conditioning, section-aware composition planning, neural vocal synthesis, and latent audio rendering
Core Capabilities
Product Specs
Performance Metrics
Benchmark Comparison (3)
Ethical Considerations
Copyright & Licensing
BeatFusion was trained exclusively on licensed and royalty-free music catalogs. Generated outputs are cleared for commercial use and do not reproduce copyrighted compositions.
Limitations
While highly advanced, BeatFusion may occasionally produce minor tonal artifacts in complex multi-instrument arrangements or subtle timing inconsistencies in very long compositions exceeding 3 minutes.
Content Safety
Audio output is filtered for harmful content. Profanity detection and content classifiers prevent generation of explicit or offensive audio material.
Comparison With Industry Models
| Model | Architecture | Parameters | FAD Score (2) | Max Sample Rate | Max Duration |
|---|---|---|---|---|---|
| BeatFusion | Hybrid Multimodal | 3.8B | 2.89 | 44.1kHz stereo | 5 min |
| MusicGen Large | Autoregressive Transformer | 3.3B | 5.48 | 32kHz mono | 30s |
| Stable Audio 2.0 | Latent Diffusion (DiT) | ~1.2B | 3.65 | 44.1kHz stereo | 4m 45s |
| AudioLDM 2 | Latent Diffusion + GPT-2 | ~712M | 4.18 | 16kHz mono | 30s |
| MAGNeT | Non-Autoregressive Transformer | ~1.5B | 4.58 | 32kHz mono | 30s |
Key Advantages
Audio Fidelity
Competitive FAD scores with 44.1kHz stereo output quality
Long-Form Output
Up to 5 minutes of coherent, structured music generation
Controllability
Melody conditioning, style transfer, and stem separation
Generation Efficiency Comparison
BeatFusion delivers superior generation speed with optimal audio quality, demonstrating our architecture's efficiency when deployed on H100 GPUs.
Legal Notes & References
(1) Performance metrics are based on internal benchmarks conducted by Skytells AI Research team on cloud-hosted NVIDIA H100 GPUs. Generation speed may vary based on system configuration, network conditions, and prompt complexity.
(2) FAD (Fréchet Audio Distance) scores measured using standardized MusicCaps benchmark dataset. Lower scores indicate better audio quality and more realistic outputs.
(3) Competitive model metrics derived from publicly available papers and internal comparative testing as of Q1 2026. All trademarks and product names are the property of their respective owners.
(4) The "Quality-to-Speed Ratio" is a Skytells proprietary metric calculated by combining audio fidelity metrics (FAD, CLAP score) with generation speed on H100 GPUs. All models were benchmarked using the same hardware configuration (8x NVIDIA H100 GPUs) for fair comparison.
Tests conducted by Skytells AI Laboratories on March 1st, 2026 on a machine equipped with 8x NVIDIA H100 GPUs, 256GB RAM, and 2TB NVMe storage running Ubuntu Pro 22.04 LTS. Results represent averages based on 56 generations across various genres, durations, and prompt complexity levels. Audio quality evaluated using FAD on the MusicCaps benchmark dataset. Benchmarks were conducted across our global infrastructure in North America, Europe, and Asia-Pacific regions.BeatFusion™ is a trademark of Skytells, Inc. Performance may vary based on hardware configuration, network conditions, and workload characteristics. These results are provided for informational purposes only and do not constitute a guarantee of performance. All rights reserved © 2026 Skytells, Inc.The BeatFusion model family may require prior approval for use in certain regions due to local regulations governing AI-generated audio and synthetic media content. Please contact your account representative or visit our documentation for region-specific availability details.