Hy4 preview vs Kling Motion Control: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Hy4 preview and Kling Motion Control — 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.
Kling Motion Control
Kling Motion
Precise AI-driven motion transfer for realistic character actions, expressions, and full-body performance with professional control.
Key features
- Precise Motion Transfer: Uses AI to map source motion onto target characters, preserving timing and movement nuances for realistic results.
- Full-Body Performance Support: Handles complete body motion transfer including limbs, torso, and overall posture to reproduce complex actions.
- Expression Mapping: Captures and transfers facial actions and expressions to enhance character believability and emotional range.
- Professional Control: Provides production-oriented controls to fine-tune and adjust transferred motion for shot-specific or stylistic needs.
- Precise motion transfer to characters
- Support for realistic full-body performance retargeting
- Facial expression and action transfer
- Professional controls for refining outputs
- Integration-friendly outputs suitable for animation pipelines
Best for
- Character Animation Production: Rapidly generate base animations for characters in film, TV, or game projects to accelerate animator workflows.
- Performance Transfer from Actors: Map live actor performances onto digital avatars for virtual production or cinematic scenes.
- Facial and Emotional Animation: Create expressive facial performances by transferring subtle expression data to character rigs.
- Iteration and Refinement: Use AI-transferred motion as a starting point for animators to quickly refine timing and poses to final quality.
- Prototype and Previsualization: Quickly populate scenes with realistic character motion for layout, blocking, and previs stages.
- Animating game characters using live or recorded performances
- Film and VFX character performance retargeting
- Virtual production and real-time character driving
- Generating expressive avatars for AR/VR experiences
- Accelerating character animation workflows in studios