Hunyuan (2023)
The initial public enterprise Hunyuan product, introduced for testing and API access through Tencent Cloud.
FAMILY / TENCENT HY
Hunyuan / Hy
Tencent’s open reasoning and agent line, evolving from Hunyuan Large to Hy4.
- First model
- 2023
- Models
- 5
- Latest dated version
- Hy4 preview
01 / RELEASE SEQUENCE
Family release sequence
02 / GENERATIONS
What changed
Hunyuan Large
Tencent’s first large open MoE with 389B total and 52B active parameters.
Hy3 Preview
The first Hy3 preview after Tencent rebuilt its training stack, combining fast/slow reasoning with sparse MoE.
Hy3
The final Hy3 used product feedback to improve agents, coding, and output reliability.
Hy4 preview
Hy4 preview expands model scale, context, and training data, bringing Gated DSA, IndexCache, iHC, and native MTP into Hy’s open-model line.