<?xml version="1.0" encoding="utf-8" standalone="yes"?><?xml-stylesheet type="text/xsl" href="/rss.xsl"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Langsmith · berkin says</title><link>https://berkinsays.com/tags/langsmith/</link><description>Langsmith 栏目的最新文章 · berkin says — berkin · 代码 · 山水 · 慢长文</description><generator>Hugo</generator><language>zh-cn</language><lastBuildDate>Mon, 01 Jun 2026 10:50:00 +0800</lastBuildDate><atom:link href="https://berkinsays.com/tags/langsmith/index.xml" rel="self" type="application/rss+xml"/><item><title>L4-0 · AI 可观测格局：从 30 个产品到一个选型坐标系</title><link>https://berkinsays.com/posts/tech/l4-0-ai-observability-landscape/</link><pubDate>Mon, 01 Jun 2026 10:50:00 +0800</pubDate><guid>https://berkinsays.com/posts/tech/l4-0-ai-observability-landscape/</guid><description>把当前 AI 可观测赛道的 30+ 产品按"它们在 LLM 调用链路的哪个位置切入"分成 5 种路线，给出二维选型坐标系和决策树。截至 2026-06。</description></item></channel></rss>