Model index
Tencent Hy·Hunyuan / Hy

Hy3 Preview

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

LegacyReasoningCodingAgentOpen weights
MODEL NUMBER184
First public date
2026-04-24
Organization
Tencent Hy
Family
Hunyuan / Hy
01

Specifications

Only published specifications are shown.

Total parameters
295B
Active parameters
21B
Architecture
MoE
Context
256,000 tokens
Input modalities
Text
Output modalities
Text
Open weights
Yes
License
Apache-2.0
Status
Legacy
02

Overview

Release dates

— Tencent released Hy3 Preview. ↗

03

Specifications alongside predecessor

Compared with Hunyuan Large ↗

PreviousHunyuan Large389B · — ctx
CurrentHy3 Preview295B · 256K ctx
04

Architecture & capabilities

Model capabilities

Hybrid reasoningCodingTool use
05

Release history

06

Related models

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07

Sources

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