TL;DR: These two aren’t the same product. Grok is a chatbot — witty, fast, with live X and web data in every tier, from free to a $10–$300 ladder. Muse is an agent — it completes tasks in its own secure browser, free with weekly limits, $20/$100 paid, but US/Canada only. Pick the chatbot for answers; the agent for errands.
“AI assistant” covers a lot of ground in 2026 — Grok vs Muse is really a question about which kind of help you want.
This comparison is research-based (no hands-on testing), with pricing verified against current sources in October 2026. Prices change — check before you buy.
Grok vs Muse: the side-by-side comparison
| Feature | Grok | Muse | Edge |
|---|---|---|---|
| What it is | xAI’s chatbot — answers, chats, creates, with live social and web data | Meta’s personal AI agent — plans and completes multi-step tasks for you | Different species; the rest of the table explains why |
| Core strength | Real-time X + web awareness in every tier, frontier Grok 4.x models | Acts in its own secure VM and browser: shops, books, fills forms — asking approval first | Grok for knowing; Muse for doing |
| Free tier | Free with unpublished rate limits — chat, search, voice, image generation within limits | Free with a weekly token allowance; no signup friction for basic use | Tie — both genuinely usable free |
| Paid entry | SuperGrok Lite: $10/month | Power: $20/month (reported 500M tokens/week) | Grok — half the entry price |
| Standard paid tier | SuperGrok: $30/month ($300/year) — Grok 4.x, Grok Bot, 5x longer chats | Maximum: $100/month | Both sell more usage, not different features |
| X / social integration | Native — real-time posts, trends, and Grok Bot replies on X; bundled into X Premium ($8/mo) and Premium+ ($40/mo) | None — instead it connects to your Facebook and Instagram for personal context | Grok if X is your news source |
| Task execution | Research, links, and answers — no agentic browser | Own secure computer with Sentinel monitoring and an action log; connectors for Shopify, Expedia, Slack, Notion, QuickBooks | Muse — the only true agent here |
| Availability | Global — grok.com, X, iOS and Android apps | US and Canada only; 18+; iOS, Android, web, Mac app, and WhatsApp | Grok — no contest outside North America |
| Privacy posture | Standard chatbot account; developers get a usage-based API | Isolated-by-design VM and approval-before-action are genuinely serious — but permission controls are young and Meta’s data track record invites scrutiny | Caveat for both; start Muse with low-risk tasks |
What Grok does well
Grok’s defining trait is live internet awareness — specifically X. It sees what’s happening on X right now, making it the best mainstream chatbot for breaking events and trending topics. The Grok 4.x models underneath are frontier-class, and the dry, slightly irreverent personality makes it the least boring chatbot to talk to.
The pricing ladder is the most flexible in the industry: free, then $10, $30, $100, and $300 a month, each buying more usage. X Premium ($8/month) and Premium+ ($40/month) fold Grok access into a social subscription you might already have. Voice chat, image and video generation, and a developer API round out a package available almost everywhere.
What Muse does well
Muse does something Grok doesn’t: it acts. Tell it to book flights, compare prices and check out, or handle forms, and it opens its own browser inside a dedicated secure virtual machine in Meta’s cloud and works through the job — with a monitoring agent, encrypted passwords, and a reviewable action log. It asks before sensitive actions. For an agent built to touch your accounts, this isolated-by-design architecture is more serious than anything else in the consumer space.
The free tier’s weekly token allowance covers most casual use, and the paid tiers ($20 and $100 a month) just raise the usage caps. The honest caveats: it’s brand new (September 2026), US/Canada only with no firm dates elsewhere, you need a payment card on file even for the free tier, and agents that move at machine speed need mature permission controls — Meta’s are still young. Start with low-risk jobs.
Which should you pick?
Pick Grok if you want a daily chatbot with its finger on the pulse — live X and web awareness, a strong free tier, global availability, and a pricing ladder that starts at $10/month. It’s the better pure conversationalist and the only option outside the US and Canada.
Pick Muse if your bottleneck isn’t answers but errands — nothing else shops, books, and fills forms through its own secure browser. Keep approvals tight, start with low-stakes tasks, and weigh Meta’s privacy history before connecting accounts.
Frequently asked questions
Is Grok free?
Yes, with unpublished rate limits — fine for casual chat, search, and image generation. Paid plans start at SuperGrok Lite ($10/month); standard is SuperGrok at $30/month.
Is Muse free?
Yes — a free tier with a weekly token allowance covers most everyday use. Power ($20/month) and Maximum ($100/month) raise the usage caps rather than unlocking new features. Note that Meta requires a payment card on file even for the free tier.
Can Muse really buy things for me?
It can shop, compare, and check out on your behalf through its own browser, asking approval before sensitive actions. Meta plans to take a small fee on purchases made through Muse — worth knowing the business model behind the recommendations.
Can I use Muse outside the US?
Not yet — Muse is US and Canada only as of October 2026, with no firm dates for other countries. Grok is available globally.
Prices checked October 2026. This is a research-based comparison — we didn’t test either tool hands-on.