Personal AI assistant with real-world agency, persistent memory, and its own identity.
By Tanmay Verma, Founder · Last verified 06 Jul 2026
In short
The 2025 State of AI — Personal AI assistant with real-world agency, persistent memory, and its own identity. Best for Tech enthusiasts wanting a personal AI assistant with real-world agency, Power users who automate email, scheduling, and social media, Developers comfortable with open-source self-hosting and CLI. Free to start; paid plans from $50/mo.
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Vellum is the most ambitious personal AI assistant we've seen, offering genuine autonomy and deep integrations. Its complexity is a barrier for casual users, but for those willing to invest time, it's incredibly powerful—especially for automating email, scheduling, and social media. The open-source model and transparent credit-based pricing are refreshing. Compared to ChatGPT or Mem, Vellum offers deeper real-world agency, but at the cost of a steeper learning curve. It's best for tech enthusiasts who want a customizable, proactive AI companion, not for those seeking a simple chat interface.
Skip The 2025 State of AI if Skip Vellum if you want a simple app-based AI chat interface without configuring skills, managing credits, or learning assistant management—its power comes with complexity.
Compare with: The 2025 State of AI vs Poke (Interaction Co.), The 2025 State of AI vs Poolside AI, The 2025 State of AI vs Juicebox PeopleGPT
Last verified: July 2026
Across the latest 2 updates: 2 changelog entries.
Assistant can now write and edit its own skills based on memory; Slack UI renders images, tables, and markdown; heartbeat enabled by default; plugins installable via GitHub URL.
New web onboarding suggests plugins and connects Google Calendar; MCP settings moved under Integrations; plugins publish CLI command added; advisor streams live.
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
42 mentions across 4 sources (Hacker News, Product Hunt, Bluesky, Lemmy).
How likely is The 2025 State of AI to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →Vellum is a personal AI assistant platform that gives you a cloud-hosted assistant with its own email address, subdomain, and the ability to act autonomously—sending emails, making phone calls, posting to social media, and building web apps. It's designed for tech enthusiasts and power users who want a customizable, proactive assistant that can manage your email, calendar, Slack, Linear, and more. Setup takes minutes: you name your assistant, shape its personality, and it progressively reveals capabilities. Vellum uses a skill-based architecture where the assistant can even write its own skills from memory. Key features include a proactive heartbeat that checks reminders up to 10 times daily (v0.10.4), a personal knowledge base, voice interaction (push-to-talk or always-listening), and a browser extension. The platform is open-source with self-hosting options. Recent updates (v0.10.4) overhauled the memory system, allowing the assistant to autonomously write and edit skills. Pricing is freemium: a free Base tier with limited compute and storage, and a Pro tier ($50/mo) for larger machines and storage, with pay-as-you-go credits for inference and third-party APIs.
Vellum stands out because it doesn't just chat—it acts. With its own email address and subdomain, it can send emails, make phone calls, post to X/Twitter, and even build web apps from a conversation. The proactive heartbeat (up to 10 times daily in v0.10.4) checks reminders and pushes updates to Slack, making it genuinely useful for daily ops. The self-writing skills feature is a differentiator: your assistant can create new abilities based on past interactions. However, this power comes with complexity. Setting up integrations like Google Calendar, Slack, and Linear requires some initial configuration, and the credit-based billing for inference (LLM calls, web search, image generation) can be a hidden cost for heavy users. The free Base tier is limited (1 vCPU, 2 GiB RAM, 4 GiB storage), so you'll likely need the Pro tier ($50/mo plus machine add-ons) for serious use. Also, the assistant's heartbeat is capped at 10 runs per day even on Pro. If you're comfortable with open-source self-hosting, Vellum offers full data control. For less technical users who just want a simple chat interface, alternatives like ChatGPT or Claude might be better. Overall, Vellum is a powerful tool for tech enthusiasts who enjoy configuring their AI assistant and want real-world automation.
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Concrete scenarios for the personas The 2025 State of AI actually fits — and what changes day-one when you adopt it.
You wake up and Vellum sends you a Slack summary of today's calendar, weather, and top news. You ask it to check your email and draft replies to two urgent messages.
Outcome: Your morning briefing and email triage are done in minutes without opening any app.
You ask Vellum to build a habit tracker web app. It creates a working app with a database and UI in the conversation. You later ask it to deploy it to a custom subdomain.
Outcome: You get a functional web app without writing any code.
You tell Vellum 'post a thread about our new feature on X.' It drafts, posts, and later summarizes replies. It also reads a competitor's post and drafts a response.
Outcome: Social media engagement happens autonomously, saving hours per week.
as of 2026-07-06
as of 2026-07-06
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
For each published The 2025 State of AI tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Base (Free)
$0/mo
Ideal for
Solo explorers wanting to test Vellum's capabilities with limited compute and storage.
What this tier adds
Free entry point with Small processing (1 vCPU, 2 GiB) and 4 GiB storage; no custom subdomain or static IP.
Pro
$50/mo
Ideal for
Power users and professionals needing more compute, larger storage, and custom subdomain for their assistant.
What this tier adds
Adds $10/mo platform fee, unlocks Medium/XL machine tiers, larger storage options, custom subdomain, static IP, and priority support.
The company stage and team size where The 2025 State of AI's pricing actually pencils out — and where peers do it cheaper.
Vellum's pricing is ideal for tech enthusiasts who want a customizable, self-hosted AI assistant but can handle variable costs. The free Base tier is great for exploration, but serious users will likely need Pro ($50/mo + machine add-ons) plus credits for inference, which can make it pricier than ChatGPT Plus ($20/mo) or Claude Pro ($20/mo). However, Vellum's real-world agency and open-source model justify the cost for power users who need email, phone, and social media automation.
How long it actually takes to get something useful out of The 2025 State of AI — broken out by persona, not the marketing-page minute.
For a tech-savvy user, you can sign up, name your assistant, and start chatting in under 5 minutes. Connecting integrations like Google Calendar or Slack takes another 10–15 minutes each. Self-hosting requires more time: roughly 30 minutes if you're familiar with Docker and GitHub.
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
Full product docs from vellum.ai
Get up and running fast from vellum.ai
Get up and running fast from vellum.ai
Full product docs from vellum.ai
Common stack mates teams adopt alongside The 2025 State of AI, with the specific reason each pairing earns its keep.
AI personal assistant in Apple Messages, WhatsApp, Telegram, and RCS
Enterprise open-weight foundation models and agents for high-consequence software engineering.
AI recruiting platform with PeopleGPT search and autonomous agents
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