# AI Agent Field Guide

> A plain-English guide to AI assistants and agents: what each one really does, what it costs, where it falls short, and how to get real jobs done with them.

Plain-English guide to AI assistants and agents: a directory of tools (what each does, costs, and where it struggles, checked on the maker's own pages), head-to-head comparisons, best-of lists, and step-by-step guides for jobs assistants usually fumble. One of the tools listed is made by the people who write this guide; see https://aiagentfieldguide.com/about.

## Best of
- [The best AI email assistants in 2026](https://aiagentfieldguide.com/best/best-ai-email-assistant): The best AI email assistants, from inbox apps that draft in your voice to an assistant with its own address that sends and chases for you. Prices and catches.
- [The best AI agents for small business owners in 2026](https://aiagentfieldguide.com/best/best-ai-agent-for-small-business): The best AI agents for a small business: who chases invoices, books jobs and follows up, who makes the decks, and who suits a team in Slack. Prices and catches.
- [The best AI personal assistants in 2026](https://aiagentfieldguide.com/best/best-ai-personal-assistant): The best AI personal assistants for life admin: refunds, bookings, forms, reminders and the calendar. Which ones do the job, which are free, and what to watch.
- [The best AI agents in 2026, for people who aren't engineers](https://aiagentfieldguide.com/best/best-ai-agents): The best AI agents that actually do things: errands over days, finished decks and reports, web tasks in your browser, and teams. What each costs and its catch.
- [The best AI assistants you can text in 2026](https://aiagentfieldguide.com/best/best-ai-assistant-you-can-text): AI assistants you can text like a person, over iMessage, SMS or WhatsApp. Which ones actually do the job, which are free, and the catch with each.
- [The best ChatGPT alternatives in 2026](https://aiagentfieldguide.com/best/best-chatgpt-alternatives): The best ChatGPT alternatives: Claude, Gemini, Copilot, Perplexity, Grok and more, plus an assistant you text that does the job itself. Prices and fit.

## Comparisons
- [ChatGPT vs Your Own AI Assistant](https://aiagentfieldguide.com/compare/chatgpt-vs-your-own-ai-assistant): ChatGPT is a great free AI to talk to. Our assistant has its own email address and computer, takes jobs by text, and does the work itself. Costs and fit.
- [Manus vs Your Own AI Assistant](https://aiagentfieldguide.com/compare/manus-vs-your-own-ai-assistant): Manus makes decks, reports and websites from one request. Our assistant takes jobs by text and email and chases them for days. Prices, limits, who each suits.
- [Lindy vs Your Own AI Assistant](https://aiagentfieldguide.com/compare/lindy-vs-your-own-ai-assistant): Lindy is a work assistant for teams in Slack with 1,500+ app connections. Ours has its own email and computer and works for one person. Prices and fit.
- [Instinct vs Your Own AI Assistant](https://aiagentfieldguide.com/compare/instinct-vs-your-own-ai-assistant): Instinct and our assistant both take jobs by text and have their own email. How they differ on price, payments, privacy terms and doing the work itself.
- [Poke vs Your Own AI Assistant](https://aiagentfieldguide.com/compare/poke-vs-your-own-ai-assistant): Poke is a free assistant in your texts for reminders, calendar and inbox. Ours has its own email and computer to do the job itself. What each does and costs.
- [Genspark vs Your Own AI Assistant](https://aiagentfieldguide.com/compare/genspark-vs-your-own-ai-assistant): Genspark makes slides, sheets and docs and can phone businesses. Ours is one assistant you text, with its own email and computer. Prices, calls, who each suits.
- [ChatGPT vs Claude](https://aiagentfieldguide.com/compare/chatgpt-vs-claude): ChatGPT vs Claude in plain English: what each does best, what they cost, which can act in your browser, and which suits writing, coding and everyday questions.
- [ChatGPT vs Gemini](https://aiagentfieldguide.com/compare/chatgpt-vs-gemini): ChatGPT vs Google Gemini: prices from free to $200, which one works inside Gmail and Chrome, which can browse for you, and who each one suits best.
- [Grok vs ChatGPT](https://aiagentfieldguide.com/compare/grok-vs-chatgpt): Grok vs ChatGPT: live X search, image and video making, always-on bots, prices from free to $200 a month, and the safety issues to know before you pick.
- [Comet vs ChatGPT agent (and Atlas)](https://aiagentfieldguide.com/compare/comet-vs-chatgpt-agent): ChatGPT Atlas is retired. So how does Perplexity's Comet browser compare with ChatGPT's agent mode for clicking through websites for you? Prices and limits.
- [Manus vs Genspark](https://aiagentfieldguide.com/compare/manus-vs-genspark): Manus and Genspark both turn one request into a finished deck, report or site. How they compare on free plans, prices, phone calls, email and always-on work.
- [Superhuman vs Shortwave](https://aiagentfieldguide.com/compare/superhuman-vs-shortwave): Superhuman Mail and Shortwave both speed up your inbox with AI drafts, sorting and search. Gmail or Outlook, prices, trials and AI limits compared.

## How-to guides
- [How to get an AI to actually do a task for you](https://aiagentfieldguide.com/jobs/do-it-for-me): Most AI tools tell you how to do it. Here is why they stall on real websites, and a step-by-step way to hand the whole job to an assistant that does it itself.
- [How to get an AI to follow up for you](https://aiagentfieldguide.com/jobs/follow-up-for-me): Most AI tools forget the moment you close the chat. Here is why AI follow-ups and reminders fail, and how to have an assistant chase people for you over days.
- [How to get an AI to deal with customer support or get a refund](https://aiagentfieldguide.com/jobs/deal-with-customer-support): Refunds, cancellations and support chats eat hours. Here is why most AI tools can't handle them, and a step-by-step way to hand the fight to an AI assistant.
- [How to get an AI to read and answer your email](https://aiagentfieldguide.com/jobs/handle-my-email): AI email tools mostly draft and wait. Here is why, what to watch out for, and how to set up an assistant that reads your inbox and replies as you, step by step.
- [How to get an AI to book restaurants, appointments and travel](https://aiagentfieldguide.com/jobs/book-for-me): AI booking tools pick wrong dates and stop at payment. Here is why, and a simple step-by-step way to have an AI assistant book tables, appointments and trips.
- [How to get an AI to fill in forms and applications](https://aiagentfieldguide.com/jobs/fill-in-forms): AI tools often fill forms wrong: bad dates, wrong boxes, blank fields. Here is why, and a step-by-step way to have an AI assistant fill in forms for you.
- [How to get an AI to remember you between conversations](https://aiagentfieldguide.com/jobs/remember-me): Tired of explaining yourself to AI every time? Here is why chat apps forget, simple tricks that help, and how to use an assistant that keeps its own notes.
- [How to get an AI to keep working while you're away](https://aiagentfieldguide.com/jobs/work-while-away): Most AI agents stop when you close the laptop or hit a login. Here is why, and how to give an assistant jobs that carry on while you sleep, travel or work.

## Tools
- [Your Own AI Assistant](https://aiagentfieldguide.com/tools/your-own-ai-assistant): A personal AI assistant with its own email address and its own computer: you text or email it a job, it does the work and writes back.
- [ChatGPT](https://aiagentfieldguide.com/tools/chatgpt): OpenAI's chat assistant, which can now also browse the web and work on longer jobs for you on paid plans.
- [Claude](https://aiagentfieldguide.com/tools/claude): Anthropic's assistant for writing, thinking and work, which on paid plans can also use a browser and a computer to finish jobs.
- [Gemini](https://aiagentfieldguide.com/tools/gemini): Google's assistant, built into Chrome, Gmail, Docs and Android, that can also run browsing tasks on paid plans.
- [Grok](https://aiagentfieldguide.com/tools/grok): The assistant from Elon Musk's AI company, built into X, with live X search and, on higher plans, always-on 'Grok Bot' teammates.
- [Meta AI](https://aiagentfieldguide.com/tools/meta-ai): Meta's free chat assistant inside WhatsApp, Instagram, Messenger and Facebook, plus its own app and website.
- [Muse](https://aiagentfieldguide.com/tools/meta-muse): Meta's personal AI agent that does tasks for you on its own secure cloud computer, launched in the US in September 2026.
- [Microsoft Copilot](https://aiagentfieldguide.com/tools/microsoft-copilot): Microsoft's assistant, free on its own and built into Word, Excel, Outlook and Edge with a Microsoft 365 plan.
- [Comet](https://aiagentfieldguide.com/tools/perplexity-comet): Perplexity's free web browser with a built-in assistant that can browse and click through sites for you on paid plans.
- [Perplexity](https://aiagentfieldguide.com/tools/perplexity): An answer engine that searches the web and cites its sources, with an agent called Perplexity Computer on paid plans.
- [Alexa+](https://aiagentfieldguide.com/tools/alexa-plus): Amazon's new Alexa, a voice and chat assistant for home, shopping and bookings, free with Prime.
- [Opera Neon](https://aiagentfieldguide.com/tools/opera-neon): A paid AI browser from Opera with agents that act on websites, research and make things for you.
- [Instinct](https://aiagentfieldguide.com/tools/instinct): A personal AI assistant you text or call, which then does errands and tasks for you.
- [Lindy](https://aiagentfieldguide.com/tools/lindy): An AI assistant for work that lives in Slack, iMessage, email and your browser and handles tasks across your apps.
- [Manus](https://aiagentfieldguide.com/tools/manus): An AI agent that takes a whole job, such as research, slides or a website, and does it on its own computer in the cloud.
- [Superhuman Mail](https://aiagentfieldguide.com/tools/superhuman): A fast email app for Gmail and Outlook with AI that sorts mail, drafts replies in your voice and answers questions about your inbox.
- [Shortwave](https://aiagentfieldguide.com/tools/shortwave): An AI email app for Gmail with an assistant that writes, searches, sorts and schedules for you from a plain-English request.
- [Fyxer](https://aiagentfieldguide.com/tools/fyxer-ai): An AI assistant that sorts your Gmail or Outlook inbox, writes reply drafts in your tone and takes meeting notes.
- [Genspark](https://aiagentfieldguide.com/tools/genspark): An AI agent workspace that makes slides, documents, spreadsheets and research on a cloud computer, and can even phone businesses for you.
- [Martin](https://aiagentfieldguide.com/tools/martin): A personal AI assistant you text, call or email to manage your calendar, inbox, to-dos and reminders.
- [Motion](https://aiagentfieldguide.com/tools/motion): An AI planner that puts your tasks and projects onto your calendar and reshuffles the plan when things change.
- [Poke](https://aiagentfieldguide.com/tools/poke): A personal AI assistant that lives in your text messages and connects to your email, calendar and apps.
- [Howie](https://aiagentfieldguide.com/tools/howie): An AI scheduling assistant you CC on an email (or text) that finds a time and sends the calendar invite.

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