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Retrieval
Search, grounding and context-assembly workflows.
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Skills and knowledge entries are written in Chinese, as are signals from Chinese sources.
Published signals
6 signalsDeepSeek V4.1 Flash 新版 1017：更强也更省
DeepSeek 推出 V4.1-Flash-1017 模型，在代码与智能体任务基准上提升的同时压缩了任务运行时间和输出长度，官方称为「性能—费用的帕累托改进」。配套 Harness 升级至 0.2.1 版本，并开放自研 Search 与 Fetch 两个搜索 API，每千次成功请求 5 元，11 月 1 日前免费。
EmbeddingGemma 2: an open, lightweight multimodal embedding model
EmbeddingGemma 2: an open, lightweight multimodal embedding model
Pinterest 数百亿向量检索：量化与 SSD 的取舍明细
Pinterest 的搜索平台 Manas 在 80 个集群上服务数百亿嵌入向量。在 1 亿条向量上的离线基准里，标量量化把 HNSW 索引从 121GB 压到 50GB、召回几乎不掉；乘积量化压到 32GB，召回从 93.7% 掉到 77.3%。上线后服务成本降低 20% 到 30%。搬到 SSD 时，SPANN 加乘积量化的吞吐是 DiskANN 的 3 倍、延迟三分之一，召回低 5%。选哪种，取决于你的召回下限，不取决于压缩率。
Jev introduces a new shape of LLM - System One, aka Decision Models
Last week TypeSafe AI unveiled Jev, their first example of a new category of model that they are calling "System One models" (I'm with Maggie Ap…
How Much Memory Does Your Agent Actually Need?
Agentic memory is not a feature you switch on; it is a dose you calibrate to the model.
LFM2.5-Encoders for Fast Long-Context Inference on CPU
Two new encoder models, LFM2.5-Encoder-230M and 350M: they match larger encoders on GLUE, SuperGLUE and multilingual tasks, handle 8,192-token context, and run about 3.7x faster than ModernBERT-base on CPU at long context.