Event ·Official first-hand

混元4Preview模型发布，Arena WebDEV评分第五

混元4Preview模型已发布，在Arena的WebDEV基准测试中排名第五。该模型总参数达770B，激活参数为49B，性能与刚发布的GLM-5.3Flash相当。模型支持1M上下文长度，专为生产力优化，采用一致且可负担的定价策略。

Current read

腾讯发布混元4Preview，770B参数仅激活49B，WebDEV第五，性价比高

11 sources73° AI heatLast updated 2026/8/28 07:19:34

Evidence

11 sources

Primary source歸藏(guizang.ai)

2026/8/28 07:19:34View source

Related source 1Paul Couvert

2026/8/26 14:32:40View source

Related source 2lmarena.ai

2026/8/26 14:37:38View source

Related source 3IT之家

2026/8/26 14:21:30View source

Related source 4elvis

2026/8/26 14:42:48View source

Related source 5marktechpost

2026/8/26 21:33:23View source

Related source 6SuperTechFans

2026/8/27 00:44:28View source

Related source 7Decoder

2026/8/27 10:24:49View source

Related source 8Geek

2026/8/26 10:46:04View source

Related source 9OpenRouter

2026/8/26 14:14:48View source

Related source 10shao__meng

2026/8/26 14:46:59View source

Conflict check

Dedup data only shows that these sources discuss the same event, not that they agree. There is no structured supporting or refuting evidence yet, so no conflict is inferred automatically.

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