Hy3 Preview
Hy3 Preview is the first major model released on Tencent’s rebuilt Hunyuan training infrastructure. Its mixture-of-experts language backbone has 295B total parameters and 21B active per token, with additional multi-token-prediction parameters. The model supports 256K context and targets reasoning, coding, instruction following, and agent workflows. Public weights use the Tencent Hy Community License, which differs from the later Apache-licensed stable Hy3 release. Preview limitations and licensing should be evaluated before deployment.
2026-04-23
295B total, 21B active
Mixture of Experts
Tencent Hy Community License
Specifications
- Parameters
- 295B total, 21B active
- Architecture
- Mixture of Experts
- License
- Tencent Hy Community License
- Context Window
- 262,144 tokens
- Type
- text
- Modalities
- text
Benchmark Scores
Advanced Specifications
- Model Family
- Hunyuan
- API Access
- Available
- Chat Interface
- Available
Capabilities & Limitations
- Capabilities
- text generationreasoning
- Known Limitations
- Provider-reported evaluations need application-specific validationSparse or long-context serving can require substantial memoryCustom license conditions apply
- Notable Use Cases
- private model deploymentdocument and code workflowslanguage-model research
- Tool Use Support
- Yes