# Vellum

根据 OpenAITools.app 于 2026-11-11 验证的遥测数据，Vellum（vellum.ai）是一个收录在 AI Developer Tools 下的 AI 平台，月访问量为 33.19万，月度环比流量变化为 -8.7万（-20.8%）。其主要地理市场为 美国（31.3% 流量份额），采用 免费增值，付费 定价模式。 按月流量计算的主要竞争替代方案包括 Google AI Studio（1.13亿 次访问/月）, Salesforce Agentforce（原 Einstein）（1.12亿 次访问/月）, Code Arena（3582.79万 次访问/月）。

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.

## 关键遥测与规格

| 指标 | 值 |
| :--- | :--- |
| 工具名称 | Vellum |
| 标识 | vellum |
| Status | active |
| Origin | independent |
| Maintenance | active |
| 官方域名 | vellum.ai |
| 网站 URL | https://www.vellum.ai |
| 分类 | AI Developer Tools, AI Workflow, 提示词工程 |
| 定价模式 | 免费增值，付费 |
| 月访问量 | 331,901 |
| 月度环比流量变化 | -86,970 |
| 月度环比增长率 | -20.8% |
| 主要市场 | 美国 |
| 市场份额 | 31.3% |
| 直接访问 | 70,205 |
| 自然搜索访问 | — |
| 社交访问 | — |
| 推荐访问 | 18,827 |
| 邮件访问 | 849 |
| 评分 | 4.2 |
| 收藏数 | 3 |
| 支持的平台 | 网站 |
| 计费平台 |  |
| 属性 | 功能: 网站; 定价: 定价请咨询 |
| 标签 | AI 开发, AI 编排, 提示词工程, LLM 评估, AI 部署, AI 监控, AI 可观测性, AI 工作流, 代理式 AI, LLM 测试场, 文档检索, SDK |

## 概览

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.

## 定价与套餐

Free to download and run locally. Vellum Cloud subscriptions start at $30/month (Mighty), $100/month (Super) and $200/month (Ultra), each with dedicated compute, storage and bundled credits. Credits are consumed by actions. The site also notes the Personal Assistant Platform is shutting down by December 13, 2026, with instructions to download your assistant.

## 关键功能与能力

- **Long-term personal memory:** A custom-built memory system that retains you, your people, preferences and work across every conversation, rather than resetting each session.
- **Skills and tool integrations:** Connect Google Workspace, Slack, Notion, your filesystem and community plugins so the assistant can send emails, manage calendars, browse, create slides and run research.
- **Fine-grained permissions:** Set permissions so sensitive actions like emailing new contacts or modifying key files require approval until you mark them trusted.
- **Model choice:** Switch between OpenAI, Anthropic, Gemini or open-weight models via Ollama at any time, keeping you free of a single vendor lock-in.
- **Local-first privacy:** Your assistant runs locally by default with open-source code you can inspect; Vellum Cloud offers an isolated container provisioned just for you.
- **Available everywhere:** Native on Mac and available on iOS, Android, web, voice, email, Telegram, Slack and terminal, all sharing the same identity, memory and schedules.

## 主要用例

- **Automate personal busywork (Knowledge workers):** Professionals use Vellum to chase invoices, update CRMs, draft decks, schedule QBRs and surface churn risks, with memory carrying context between tasks.
- **Private everyday assistance (Privacy-conscious users):** With fine-grained permissions and local-first storage, people can let an assistant handle calendars, travel, groceries and reminders without exposing sensitive data.
- **Run operational workflows (Small teams and founders):** Teams can run recurring research, competitive monitoring and standup notes through an assistant that writes code, creates slides and browses the web.
- **Custom skills and model tinkering (Developers):** Because model access is open, developers can experiment with OpenAI, Anthropic, Gemini or self-hosted models and extend behavior with custom skills and plugins.

## 优势

- Runs locally by default with open-source code you can audit
- Genuine long-term memory that persists across every conversation
- Model-agnostic: OpenAI, Anthropic, Gemini or local open weights via Ollama
- Takes real actions across email, calendar, files and connected tools
- Fine-grained permissions keep high-stakes actions under your approval
- Accessible on Mac, iOS, Android, web, voice, email, Telegram, Slack and terminal

## 局限性

- The homepage banner states the Personal Assistant Platform is shutting down by December 13, 2026
- Proprietary cloud tiers at $30–$200 per month, and credit-based actions can add cost
- High-stakes actions require approval prompts until you mark them trusted, adding friction early on
- Mac-first native experience, so non-Apple users depend on web and chat surfaces
- Heavy tool integrations and skill setup take time to configure well

## 常见问题

### How is a Vellum assistant different from ChatGPT or Claude?
ChatGPT and Claude are primarily chat windows that act on explicit command with limited memory. Vellum is an autonomous assistant with long-term memory that can take actions across your files and tools, keeps personal data local by default, and lets you switch between OpenAI, Anthropic, Gemini or open-weight models via Ollama.

### What can a Vellum assistant actually do?
It can send emails, manage your calendar, browse the web, create slides, write code, run deep research, monitor websites and execute recurring background tasks. Built-in skills cover Google Workspace, Slack, Notion and your filesystem, with community plugins and custom skills available.

### Is there a free option?
Yes. It is free to download and run locally. Vellum Cloud subscriptions start at $30/month (Mighty), $100/month (Super) and $200/month (Ultra), with dedicated compute, storage and bundled credits.

### How private is my data?
By default your assistant runs locally, so conversation history, memory and credentials stay on your machine and are not used to train models. Vellum is open-source, and on Vellum Cloud your assistant runs in an isolated container provisioned exclusively for you.

### Can it act without asking me?
Vellum uses a fine-grained permission system. High-stakes actions such as emailing new contacts, modifying important files or spending credits require explicit approval until you mark them as trusted, so you retain control.

### Vellum 的月流量和增长趋势如何？
Vellum 目前每月获得 33.19万 访问量，月度环比流量变化为 -8.7万（增长率 -20.8%）。其主要来源市场是 美国（31.3% 份额），包括每月 7.02万 次直接访问和每月 — 次自然搜索访问。

### Vellum 免费吗？它的定价模式是什么？
Vellum 采用 免费增值，付费 定价模式。Free to download and run locally. Vellum Cloud subscriptions start at $30/month (Mighty), $100/month (Super) and $200/month (Ultra), each with dedicated compute, storage and bundled credits. Credits are consumed by actions. The site also notes the Personal Assistant Platform is shutting down by December 13, 2026, with instructions to download your assistant. 支持的计费和结账平台包括：未列出。

### 2026 年 Vellum 的最佳替代方案有哪些？
基于 OpenAITools.app 的分类流量和功能契合度，Vellum 的前五个替代方案是：1. Google AI Studio（1.13亿 次访问/月）; 2. Salesforce Agentforce（原 Einstein）（1.12亿 次访问/月）; 3. Code Arena（3582.79万 次访问/月）; 4. Miro（3074.92万 次访问/月）; 5. Cursor（2329.78万 次访问/月）。

### Vellum 支持哪些平台和核心 AI 能力？
Vellum 被归类在 AI Developer Tools, AI Workflow, 提示词工程 下，支持以下平台：网站，其核心能力标签包括：AI 开发, AI 编排, 提示词工程, LLM 评估, AI 部署, AI 监控。

## 替代方案

| 工具名称 | 月访问量 | 定价模式 | 比较 |
| :--- | :--- | :--- | :--- |
| [Google AI Studio](https://openaitools.app/zh/tool/google-ai-studio) | 112,620,020 | 免费增值 | [比较](https://openaitools.app/zh/compare/google-ai-studio-vs-vellum) |
| [Salesforce Agentforce（原 Einstein）](https://openaitools.app/zh/tool/salesforce-einstein) | 111,910,743 | 免费增值 | [比较](https://openaitools.app/zh/compare/salesforce-einstein-vs-vellum) |
| [Code Arena](https://openaitools.app/zh/tool/code-arena) | 35,827,928 | 免费 | [比较](https://openaitools.app/zh/compare/code-arena-vs-vellum) |
| [Miro](https://openaitools.app/zh/tool/miro) | 30,749,206 | 免费增值，定价请咨询 | [比较](https://openaitools.app/zh/compare/miro-vs-vellum) |
| [Cursor](https://openaitools.app/zh/tool/cursor) | 23,297,751 | 免费增值 | [比较](https://openaitools.app/zh/compare/cursor-vs-vellum) |
| [Prolific](https://openaitools.app/zh/tool/prolific-com) | 18,697,671 | 付费 | [比较](https://openaitools.app/zh/compare/prolific-com-vs-vellum) |
| [Google Antigravity](https://openaitools.app/zh/tool/google-antigravity) | 16,054,109 | 免费增值 | [比较](https://openaitools.app/zh/compare/google-antigravity-vs-vellum) |
| [Base44](https://openaitools.app/zh/tool/base44) | 14,039,232 | 免费增值，付费，定价请咨询 | [比较](https://openaitools.app/zh/compare/base44-vs-vellum) |
| [Bitbucket](https://openaitools.app/zh/tool/bitbucket) | 13,080,878 | 免费增值 | [比较](https://openaitools.app/zh/compare/bitbucket-vs-vellum) |
| [Outlier AI](https://openaitools.app/zh/tool/outlier-ai) | 10,372,036 | 付费 | [比较](https://openaitools.app/zh/compare/outlier-ai-vs-vellum) |
| [Ollama](https://openaitools.app/zh/tool/ollama) | 9,421,973 | Free, Freemium, Paid | [比较](https://openaitools.app/zh/compare/ollama-vs-vellum) |
| [VS Code](https://openaitools.app/zh/tool/vs-code) | 7,397,370 | 免费增值 | [比较](https://openaitools.app/zh/compare/vellum-vs-vs-code) |

## 社区

Vellum AI 的用户社区，围绕 AI 产品开发、LLM 评估与部署交流经验。

[Vellum](https://discord.gg/6NqSBUxF78)

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来源：https://openaitools.app/zh/tool/vellum