FAMILY / TENCENT HY

Hunyuan / Hy

Tencent’s open reasoning and agent line, evolving from Hunyuan Large to Hy3.

01 / LINEAGE MAP

Model lineage

predecessor derived from

02 / GENERATIONS

Tencent’s first large open MoE with 389B total and 52B active parameters.

2024-11-05

The first Hy3 preview after Tencent rebuilt its training stack, combining fast/slow reasoning with sparse MoE.

2026-04-24

The final Hy3 used product feedback to improve agents, coding, and output reliability.

2026-07-06