Ecrett Music vs Hy4 preview: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Ecrett Music and Hy4 preview — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Ecrett Music
Ecrett Music
Web-based tool that generates royalty-free music with mood/scene controls and downloadable licensed tracks for creators.
Key features
- Royalty-Free Track Generation: Instantly generates original background music from user inputs, producing tracks intended for royalty-free and commercial use.
- Customizable Moods and Scenes: Preset-driven controls let users select mood, scene, genre, and instrumentation to shape the emotional and stylistic character of each track.
- Adjustable Length and Structure: Users can specify track length and basic arrangement elements (intro, loop, outro) to fit video, podcast, or game timing requirements.
- Fast Preview and Export: Browser-based previewing of generated tracks with quick export options for immediate download and integration into projects.
- High-Quality Audio Downloads: Provides downloadable high-quality audio files suitable for editing and publishing across platforms and media.
- License-Focused Delivery: Supplies a simple licensing approach for generated music so creators can use tracks in monetized content with reduced licensing complexity.
- Web-based music generation with customizable parameters (genre, mood, length, instrumentation)
- Composer-grade API for programmatic music creation and retrieval
- Digital license suite to search, activate, and apply Ecrett Music permissions
- Responsive UI optimized for desktop and tablet workflows
- Bindings / integration examples for conversational models (e.g., Claude API) for score suggestion and troubleshooting
- Downloadable audio assets with royalty-free usage assurances
- Security-minded distribution and zero-hassle installation for on-prem/local utilities
- Workflow tooling for streamlined rights management and license issuance
Best for
- YouTube Video Backgrounds: Generate licensed background music matched to a video's mood and exact duration for quick publishing.
- Podcast Intros, Outros and Bed Tracks: Create consistent intros, stingers, and bed music tailored to episode tone without hiring composers.
- Game Prototyping and Loopable Ambience: Produce loopable ambient tracks and level music for prototypes or indie game projects.
- Short-form Ads and Social Content: Produce punchy, licensed tracks optimized for 15–60 second social and advertising spots.
- Corporate and Presentation Videos: Quickly score internal or external presentations and promotional videos with context-appropriate music.
- Indie Film and Video Production: Create mood-specific cues and background tracks for scenes when budget or time prevents custom scoring.
- Content creators generating background or theme music for videos and streams
- Game developers creating adaptive or placeholder tracks during development
- Filmmakers and editors sourcing royalty-free scores for projects
- Podcasters and broadcasters needing licensed beds and transitions
- Agencies producing licensed music for ads and marketing assets
- Tooling integrations where programmatic music generation is required (e.g., automated video pipelines)
Hy4 preview
Tencent
Tencent's open-weight Hy4 preview, a 770B-parameter Mixture-of-Experts model with 49B active parameters and a 1M-token context window.
Key features
- 770B Mixture-of-Experts Architecture: Holds 770 billion total parameters while activating only 49 billion per token, so capacity scales without proportional inference cost.
- 1M-Token Context Window: Accepts inputs exceeding one million tokens, allowing whole codebases, long document sets or extended agent traces in a single prompt.
- Apache 2.0 Open Weights: Released under a permissive licence that allows commercial use, modification and redistribution with no separate agreement.
- Productivity Task Focus: Tuned for real-world coding, office work and scientific research rather than narrow benchmark optimisation.
- Multi-Product Availability: Accessible globally through Tencent's WorkBuddy, CodeBuddy, Yuanbao and ima applications in addition to the raw weights.
- API Access via TokenHub and OpenRouter: Can be called through Tencent Cloud TokenHub or OpenRouter for teams that prefer hosted inference over self-hosting.
Best for
- Whole-Repository Code Work: Load an entire codebase into the million-token context to reason about refactors and cross-file dependencies at once.
- Long-Horizon Agent Tasks: Drive multi-step agent workflows where the full history of tool calls and intermediate results must stay in context.
- Self-Hosted Deployment: Run a frontier-scale open-weight model on private infrastructure where data cannot leave the organisation.
- Scientific Literature Analysis: Ingest large collections of papers or experimental logs and synthesise findings without chunking the input.
- Office Document Processing: Summarise, draft and restructure long reports, contracts and spreadsheets in enterprise workflows.
- Commercial Fine-Tuning: Adapt the weights for a proprietary product under the Apache 2.0 licence without negotiating a model licence.