模型与工具 Aug 13, 2026 at 12:579加入收藏

WeLM,即微信AI助手背后的模型,已悄然扩展至6170亿参数,并采用未公开的解码机制。没有基准测试,没有论文——仅凭一次十亿用户级别的部署。
简单来说: 腾讯的小微智能体正在微信内进行灰度测试,其运行基于名为 WeLM 的稀疏混合专家模型,该模型已悄然扩展至 6170 亿参数。目前尚无公开基准测试,也无相关论文,仅在全球最高流量的即时通讯平台之一进行大规模灰度测试。
据 Pandaily 报道的微信 AI 团队披露,WeLM 的稀疏 MoE 版本已达到 6170 亿参数,每个 token 激活 230 亿参数。腾讯从未公开发布过 WeLM。该模型为微信集成的 AI 助手小微提供动力——目前正在微信 13 亿+月活用户群体中进行灰度测试。
LLM 竞赛中“榜单至上”的叙事忽略了 WeLM 这类模型:前沿规模、生产路径、完全封闭,且依托分发护城河,这是任何 API 优先的实验室都无法匹敌的。阿里巴巴通过基准测试和开放权重与通义 Qwen 竞争。腾讯则通过嵌入技术竞争。
技术细节: 稀疏 MoE 架构每个 token 仅激活部分参数——WeLM 在每次推理步骤中激活其 6170 亿参数中的 230 亿。在计算上,这相当于 ~230 亿密集模型,这解释了为何名义上如此大规模的模型能在面向消费者的聊天界面中实现可接受的延迟。
报告中披露的“隐藏解码机制”可能指的是推测解码或为延迟优化的早退路由策略——这类推理工程不会出现在论文中,却能让产品变得更快。
任何 WeLM 的公开基准测试披露;腾讯是否会开放 WeLM 的权重(不太可能);随着灰度测试扩大,小微在性能上如何与 ChatGPT 和 Kimi 相比。
本文由人工智能撰写,并经人工编辑审核。
If WeChat’s AI is already deployed at this scale without transparency, isn’t the real question whether we even need benchmarks at this point or just better oversight?
Silent scaling to 617B without disclosure feels like a tech arms race where users are the guinea pigs. Where’s the middle ground between innovation and accountability?
A model this big without metrics is like a black box-sure, it might work for a billion users, but how do we trust it’s not just hype?
Right, but 617B parameters could just mean wasted compute without transparency-how do we know it’s not overfit for WeChat’s niche use cases?
617B parameters is impressive, but without benchmarks or transparency, how do we know it's actually useful for users? Just deploying at scale doesn't guarantee real performance or safety.
Seems like Tencent’s playing both sides-leveraging cutting-edge tech behind the scenes while keeping the rest of us in the dark. Still, a billion-user litmus test might say more than any obscure benchmark ever could.
617B params without benchmarks is like buying a sports car without a speedometer - flashy, but who really knows if it performs? Still, billion-user deployment says something.
Is Tencent’s bet on secret scaling a sign they’re chasing Moore’s Law at all costs, or proof that closed models can outperform open ones in real-world conditions?
The focus should be on whether users actually benefit from this secrecy. Transparency in AI isn’t just for trust-it shapes what gets built next. What’s the endgame here?
What if raw scale without transparency is just hype? If they’re not sharing benchmarks, how do we know it’s not just marketing without substance?
Économie de l'open frontier : viabilité, subvention, pivots