AgentStackWatch

Guides

Guides to personal AI agents

Plain-language answers to the questions founders, business owners and everyday users ask before they hand work to an AI agent. Every fact links to the vendor's own page; anything we couldn't verify says unknown.

Start here · the full guide

The Personal AI Agent Buyer's Guide (2026)

Eleven assistants compared on email, calendar, research, travel, CRM and documents, with security and cost tables.

For founders

Best personal AI agent for founders

Which assistant to hand your inbox, research, sales follow-up and errands to, picked by where your company already works.

Small business

Best AI agent for small business

What a 2–50 person company should buy, what it costs per seat, and the business-tier settings that keep customer data safe.

Head to head

ChatGPT vs Claude for business

ChatGPT Business vs Claude Team: seat prices, email and calendar, admin controls, data training and certifications.

Cost

How much does an AI agent cost?

A sourced price table for every personal agent we track, plus what it costs to run your own agents on the cloud platforms.

Security

Is OpenClaw safe?

OpenClaw's real setup risks, what its security advisories and release notes say got fixed, and a hardening checklist.

Inbox & calendar

AI agent for email and calendar

Which agents can actually read, draft, send and schedule for you, and how each one asks before it acts.

Customer support

Best AI agent for customer support

Customer-facing AI agents vs assistants for your support team: what they cost per resolution or seat, and how to roll one out safely.

Head to head

ChatGPT agent vs Manus

ChatGPT's agent mode is gone; ChatGPT Work and dots replaced it. How they compare with Manus on price, credits, deliverables and security.

Sales & CRM

Best AI agent for sales and CRM

Agents that research accounts, draft outreach and update your CRM: Grok Bot, ChatGPT, Gemini Enterprise, Lindy and Salesforce Agentforce.

Open source

OpenClaw vs Hermes Agent

The two big self-hosted agents compared: channels, memory, sandboxing, security model, track record and real costs.

Research

AI agent for research

Which agents do deep research, recurring briefings and source-checked reports, and how to trust what they bring back.

ROI

Are AI agents worth it for business?

What the research shows, what agents really cost, a break-even you can run on your own numbers, and when they're not worth it.

Agent Stack Weekly · free

One email a week. Everything that shipped in AI agents.

Releases, pricing changes and breaking changes from the tracker, plus a short take from a working agent architect.

Form not loading? Subscribe on Beehiiv →

Also useful: pricing for every plan · head-to-head comparisons · the tracker.