AI Assistants 2026: Meta Muse, OpenAI dots, Claude Duet, Grok Bot and Gemini Spark Compared

In 2026 the AI assistant stopped waiting to be asked. Google, xAI, Meta, OpenAI and Anthropic each shipped a personal agent with its own cloud computer that checks your accounts, works through multi-step tasks and messages you when it needs a decision. This hub compares the five, scores them on what matters before you hand over your inbox, and links to a detail page for each.

From AI assistant to personal AI agent

The chat assistants of 2023 to 2025 answered questions. The 2026 generation acts. Each product on this page runs on a virtual machine with its own browser, connects to your email, calendar and documents, and keeps working when your laptop is closed. They differ in where they live (a standalone app, WhatsApp, Slack, your desktop), in which actions they take without asking, and in who is allowed to buy them.

The other shared feature is the approval step. Every vendor routes sending, paying, signing and deleting through you, and several block some actions outright: Claude Duet will not trade securities or move money between accounts even with your approval. Purchases mostly run through one-time virtual cards from Stripe's Link or through Shop Pay, so the agent never sees your card number.

The scores

Four criteria, 1 to 5 each, from vendor documentation and launch coverage through November 5, 2026. These are editorial assessments of published capabilities, not hands-on benchmarks.

• Autonomy: what the agent can do on its own, in the background and across sites.
• Control: approvals, hard limits, source citations and admin controls.
• Reach: platforms, channels, countries and plan eligibility.
• Value: the price of getting started.

The assistants

Gemini Spark (now Task), from Google

Google announced Gemini Spark at I/O on May 19, 2026 and has since renamed it Task. It runs up to 15 tasks at once on Gemini models, reaches across Gmail, Calendar, Drive, Docs and Maps, and supports outside MCP apps such as Canva, OpenTable and Instacart. It needs Google AI Pro ($19.99 a month) or Ultra and a personal Google account; work accounts are not supported yet. Scheduled tasks run without asking, so set them with care. Gemini Spark explained.

Claude Duet, from Anthropic

Anthropic opened Claude Duet as a research preview on October 21, 2026. It sends a morning brief, checks your connected accounts every few hours, drafts replies and chases quiet threads, and it states which email or file each figure came from. It is included with Claude Pro, Max and Ultra for US accounts by waitlist, and it shares the plan's usage limits. Team and Enterprise plans are not supported yet. Claude Duet explained.

Meta Muse

Meta launched Muse on September 8, 2026 in a standalone app and in WhatsApp. It turns goals into plans, books and buys through one-time virtual cards, and runs in an isolated Muse Secure VM on the Muse Spark model. It has a free tier, and Mark Zuckerberg said more than 10 million people in the US and Canada set up an agent in its first six weeks. There are no business admin controls. Meta Muse explained, and Meta Muse pricing.

Grok Bot, from xAI

xAI launched Grok Bot in beta on August 11, 2026. Each account gets one persistent cloud computer that several named bots share, with desktop apps for macOS, Windows and Linux and mobile apps for iPhone and Android. You allow or deny each action, or set auto-review rules. It is sold only inside The X Subscription from Premium ($30 a month) up, and in some Cursor plans. Grok Bot explained, and Grok Bot pricing.

OpenAI dots

OpenAI introduced dots at DevDay on September 29, 2026. A dot runs on GPT-6 Astra with its own cloud computer, works toward goals you set in the background, and can be messaged in ChatGPT, Slack and Teams. You get one dot per account. It needs ChatGPT Pro (from $100 a month) or Business Premium, and it is not offered in the EEA, the UK or Switzerland. OpenAI dots explained.

Open-source alternatives

If you want to choose the model or keep the agent on your own hardware, the open-source options are OpenClaw and Nous Research's Hermes Agent. Both are MIT-licensed, reach you through WhatsApp, Telegram, Slack and other chat apps, and let you bring your own model. See OpenClaw vs Hermes Agent.

How to choose

• Your accounts decide first. An agent is only as good as what it can read. Google Workspace at home points to Gemini Spark; a Claude subscription with connectors already set up points to Duet; WhatsApp-first households point to Muse.
• Check where it can work. Muse and Duet are North America only, and dots and Gemini Spark exclude Europe and the UK.
• Read the approval rules. Look for what the agent does without asking. Gemini runs scheduled tasks unprompted, and Grok Bot lets you set actions to "Always allow".
• Count background usage. Duet and Grok Bot draw background checks from the same usage pool as chat, so an always-on agent can use up a plan faster than you expect.

AI assistant or human executive assistant?

These agents do the queue work of an assistant well: triage, first drafts, scheduling proposals, research and follow-ups. They do not hold relationships, judge which promise matters most this week, or speak for you in a room. For how this plays out in practice, Thomas Prommer describes running separate AI assistants alongside human support on his partner site prommer.net, and our partner site CTAIO covers how to roll AI assistants out across an enterprise next to human EAs.

What is the best AI personal assistant in 2026?

It depends on the accounts you already use. Gemini Spark (now called Task) scores highest overall because it is included in Google AI Pro, is available in more than 160 countries and works across Gmail, Calendar and Drive. Claude Duet asks before acting more consistently than any other assistant, but it is a US waitlist preview. Meta Muse is the only one with a free tier. OpenAI dots is the most capable at long-running goals but needs ChatGPT Pro from $100 a month.

What is the difference between an AI agent and an AI assistant?

An AI assistant answers when you ask: it drafts, summarizes and explains. An AI agent works toward a goal on its own: it opens a browser, fills forms, checks your inbox on a schedule and comes back when it needs a decision. The 2026 products on this page are personal AI agents marketed as assistants. They all run on a cloud computer and keep working when your phone or laptop is off.

Are personal AI agents free?

Only Meta Muse has a free plan, with a weekly token allowance; Power costs $20 a month and Maximum $100. Claude Duet is included at no extra cost with Claude Pro, Max and Ultra during its preview. Gemini Spark needs Google AI Pro ($19.99 a month) or Ultra. Grok Bot needs X Premium ($30 a month) or higher. OpenAI dots needs ChatGPT Pro (from $100 a month) or Business Premium.

Can an AI assistant replace an executive assistant?

Not yet for the parts of the job that carry judgment and relationships. The agents handle inbox triage, first drafts, scheduling proposals, research and follow-ups well. They still need a human to approve sends, payments and signatures, and none can represent you in a room or on most phone calls. Our partner site CTAIO covers how enterprises combine AI agents with human EAs, and Thomas Prommer writes about his own setup on prommer.net.

Which personal AI agents are available in Europe and the UK?

Few, as of November 2026. OpenAI dots and Gemini Spark exclude the EEA, the UK and Switzerland. Meta Muse is limited to the US and Canada, and Claude Duet to US accounts. Grok Bot has not published country restrictions, but its cloud computers run in the US. Open-source agents such as OpenClaw and Hermes Agent can be self-hosted anywhere.