Arize AI 每月有 249,028 次造訪，月增率 +3.2%，定價模式為付費、需聯絡報價。Vellum 每月有 331,901 次造訪，成長率 -20.8%，定價模式為免費增值、付費。
Vellum is a personal AI assistant that you own and customize. It runs locally on your machine or in Vellum Cloud, remembers your context over time, connects to your tools and takes real actions like email, calendar, research and file work, with model choice across OpenAI, Anthropic, Gemini or local open weights via Ollama.
面向生產級 AI 的代理可觀測性、評估與持續改進平台
基於 OpenTelemetry 之上的 OpenInference 規範，蒐集代理與 LLM 呼叫的 span、trace 與工作階段，埋點可跨工具重複使用。
在 span、trace 與工作階段三個層級執行評估，對大量生產資料衡量檢索品質、工具呼叫與最終回覆的優劣。
內建於產品中的代理，可檢查链路、推斷根因，並給出供工程師上線前審閱的修復建議。
當需要讓軌跡資料留在自有基礎設施內時，可自行部署這套領先的開源追蹤與評估工具。
Vellum is a personal AI assistant that you own and customize. It runs locally on your machine or in Vellum Cloud, remembers your context over time, connects to your tools and takes real actions like email, calendar, research and file work, with model choice across OpenAI, Anthropic, Gemini or local open weights via Ollama.
A custom-built memory system that retains you, your people, preferences and work across every conversation, rather than resetting each session.
Connect Google Workspace, Slack, Notion, your filesystem and community plugins so the assistant can send emails, manage calendars, browse, create slides and run research.
Set permissions so sensitive actions like emailing new contacts or modifying key files require approval until you mark them trusted.
Switch between OpenAI, Anthropic, Gemini or open-weight models via Ollama at any time, keeping you free of a single vendor lock-in.
免費 / 開源Serves as a lightweight backend runtime for running local models, but requires a separate UI or client app.
免費 / 開源Serves as a lightweight backend runtime for running local models, but requires a separate UI or client app.
專項更強Excels at node-based workflow automation and agent orchestration, but is less focused on conversational assistant interactions.
專項更強Excels at node-based workflow automation and agent orchestration, but is less focused on conversational assistant interactions.
免費 / 開源提供具備持續記憶功能的自主個人代理程式能力，但比 Vellum 需要更多的技術設定。
免費 / 開源將本機模型直接連接至通訊應用程式以進行工作自動化，但缺乏 Vellum 精緻的桌面助理介面。
免費 / 開源為本機模型提供功能豐富的自架聊天介面，但缺乏原生背景工作流程自動化。
免費 / 開源為本機模型提供功能豐富的自架聊天介面，但缺乏原生背景工作流程自動化。
免費 / 開源專注於本機文件 RAG 與隱私優先的聊天，而 Vellum 則強調更廣泛的助理工作流程。
擅長實驗追蹤與模型登錄檔工作流程，但較少針對即時 LLM 生產可觀測性進行專門設計。
免費 / 開源Provides a streamlined desktop app for running local models, but lacks advanced agent memory and workflow integrations.
專項更強Combines visual workflow builders with AI agent connectors, but lacks native local model management out of the box.
專項更強Combines visual workflow builders with AI agent connectors, but lacks native local model management out of the box.
免費 / 開源Includes integrated guardrails and simulation tools, but is less mature for large-scale enterprise production telemetry monitoring.
免費 / 開源Includes integrated guardrails and simulation tools, but is less mature for large-scale enterprise production telemetry monitoring.
