---
title: "今日开源（2026-4-23）：腾讯混元Hy3 preview发布，295B总参数21B激活MoE架构，256K上下文窗口同参数级领先"
source_name: "机器之心SOTA模型"
original_url: "https://mp.weixin.qq.com/s?__biz=MzkyMzcwMDIyMQ==&mid=2247502120&idx=1&sn=7b0b7f12f0ccbc699df815991a0b226d"
canonical_url: "https://www.traeai.com/articles/0afb28ad-8315-4021-a97e-d0dbccb62bdb"
content_type: "article"
language: "中文"
score: 5
tags: []
published_at: "2026-04-23T11:38:00+00:00"
created_at: "2026-04-24T17:16:45.125327+00:00"
---

# 今日开源（2026-4-23）：腾讯混元Hy3 preview发布，295B总参数21B激活MoE架构，256K上下文窗口同参数级领先

Canonical URL: https://www.traeai.com/articles/0afb28ad-8315-4021-a97e-d0dbccb62bdb
Original source: https://mp.weixin.qq.com/s?__biz=MzkyMzcwMDIyMQ==&mid=2247502120&idx=1&sn=7b0b7f12f0ccbc699df815991a0b226d

## Summary

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## Content

Title: Weixin Official Accounts Platform

URL Source: http://mp.weixin.qq.com/s?__biz=MzkyMzcwMDIyMQ==&mid=2247502120&idx=1&sn=7b0b7f12f0ccbc699df815991a0b226d

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