Hy4 preview vs Supertone: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Hy4 preview and Supertone — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
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.
Supertone
Supertone
Voice intelligence platform offering text-to-speech, real-time voice changing, de-noise plugins, and voice API for creators and businesses.
Key features
- Text-to-Speech: High-quality synthetic speech generation supporting multiple voices and styles for content creation, narration, and localization workflows.
- Real-Time Voice Changer: Low-latency voice transformation for live streaming, gaming, and virtual events that modifies pitch, timbre, and character in real time.
- De-noise Plugins: Audio processing plugins that remove background noise and improve vocal clarity for recordings, live sessions, and broadcast audio chains.
- Voice API: Programmable API access for integrating TTS, voice transformation, and audio processing into apps, services, and production pipelines.
- Creator & Enterprise Workflows: Tools and integrations aimed at both independent creators (streamers, podcasters) and enterprise customers (media, customer support) for scalable voice solutions.
- Cross-platform Integration: Plugin and API architecture designed to integrate with DAWs, streaming software, and backend services for flexible deployment.
- Text-to-speech generation for content and applications
- Real-time voice changer for live modification
- De-noise plugins for audio cleanup and enhancement
- Voice API for programmatic integration into apps and services
- Platform support aimed at creators and business customers
Best for
- Content Dubbing and Localization: Generate natural-sounding localized voiceovers for video and media projects using TTS to accelerate localization.
- Live Streaming and Gaming: Apply real-time voice changer to alter a streamer’s voice during live broadcasts for character roleplay or anonymity.
- Podcast and Voice Production: Use de-noise plugins to clean recorded interviews and enhance vocal quality before publishing.
- Customer Service and IVR: Integrate the voice API to deploy synthetic voices in call centers, automated attendants, and conversational interfaces.
- Media Post-Production: Replace or augment on-set audio with synthetic speech and apply noise reduction to archival recordings during editing.
- Creator Tools Integration: Embed voice features into creator apps and platforms to let users generate and modify voice content within their workflows.
- Content creation and voice-over generation for videos and apps
- Live voice modification for streaming, gaming, and virtual events
- Audio cleanup and noise reduction for podcasts and recordings
- Integration of voice features into applications via the Voice API
- Enterprise media workflows for dubbing, localization, and post-production