Use Grok on its own to write copy, make images with Grok Imagine and send the odd email from your own Gmail or Outlook.
Connect Grok to Brew and it designs on-brand emails, sends them from your domain to your list and runs your automations, with you approving every send.
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What Grok can do for your email on its own, and what changes when it connects to Brew.
| Grok alone |   Grok + Brew | |
|---|---|---|
| Key differences | ||
| Designs finished, on-brand emails | Grok alone: Partly. Partly: Writes copy and makes images; you design the email | Grok + Brew: Yes. Layout, copy and images from your brand, ready to send |
| Renders correctly in every inbox | Grok alone: No. xAI says nothing on email-client rendering | Grok + Brew: Yes. Email-safe HTML, with inbox rendering tests |
| Sends from your own domain | Grok alone: Partly. Partly: One email at a time from your own Gmail or Outlook | Grok + Brew: Yes. From your verified domain, once you approve |
| Keeps contacts, audiences and unsubscribes | Grok alone: No. No contact list, audiences or opt-outs | Grok + Brew: Yes. Unlimited contacts, audiences and opt-outs in one place |
| Runs automations from your product’s events | Grok alone: No. Cannot trigger emails from signups or purchases | Grok + Brew: Yes. Stripe, Shopify, Clerk, Supabase or your own events |
| Shows what happened after you send | Grok alone: No. No opens, clicks or inbox placement data | Grok + Brew: Yes. Opens, clicks and inbox placement tests |
| Grok alone | Grok + Brew | |
|---|---|---|
| Working on emails | ||
| Writes and rewrites email copy | Grok alone: Yes. Drafts and rewrites copy in chat | Grok + Brew: Yes. Your assistant writes; Brew keeps it on-brand |
| Plans campaigns and lifecycle flows | Grok alone: Yes. Plans campaigns and flows in chat | Grok + Brew: Yes. Then builds them as live automations |
| Remembers your brand for every email | Grok alone: Partly. Partly: Memory, instructions and Skills hold brand notes | Grok + Brew: Yes. Brand files your agent reads every time |
| Edit the design by hand | Grok alone: Partly. Partly: Edit the text it writes, not a layout | Grok + Brew: Yes. Infinite canvas, by hand or in chat |
| Work on emails as a team | Grok alone: Partly. Partly: Grok Business and Enterprise | Grok + Brew: Yes. Unlimited seats and comments on every email |
| Sending and compliance | ||
| Unsubscribe links and suppression | Grok alone: No. Nothing to add or honor unsubscribes | Grok + Brew: Yes. Opt-outs honored on every send |
| Domain health and gradual sending | Grok alone: No. No sending domain to set up or warm up | Grok + Brew: Yes. Domain checks, plus Gradual send for new domains |
| Pricing | ||
| What it costs | Grok alone: Connectors for all users; X Subscription from $8 a month | Grok + Brew: Brew from $99/month: 10,000 AI credits and 50,000 sends |
xAI documents custom connectors for all Grok users. Grok is now sold through the X Subscription: Free, Plus at $8 a month, Premium at $30 and up.
Brew is billed on emails sent and AI credits, with unlimited contacts on every plan: a free trial with 500 AI credits and 1,000 sends, then Growth at $99/month for 10,000 AI credits and 50,000 sends.
xAI says custom connectors are available to all Grok users on grok.com. On Grok Business and Enterprise, an admin adds the connector first.
Start a free trial, paste your website so Brew writes your brand files, and connect your sending domain.
Go to grok.com/connectors, click New Connector and choose Custom.
Enter https://brew.new/api/mcp and sign in to Brew. Grok finds Brew’s tools and uses them in your conversations.
Describe the email or flow. Brew asks you to confirm before anything is sent or goes live.
Connect Claude, ChatGPT, Cursor or Grok over MCP and your agent gets every Brew tool. It designs emails from your brand, builds audiences, runs automations and schedules sends. OAuth and organization-scoped MCP connections ask you to confirm live sends and launches. Brand-scoped API keys can execute permitted calls without the MCP confirmation step.
Paste your website and Brew writes your brand into two files your agent reads for every email. Describe the email and it appears on the canvas, ready to edit by hand or in chat.
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Partly. Grok can write copy, make images with Grok Imagine and send the odd email from your own Gmail or Outlook. On its own it does not design a finished, on-brand email, hold your contacts, send from your domain or run automations.
Not marketing email. Grok’s Gmail and Outlook connectors send from your own mailbox, but it has no contact list, unsubscribes or sending domain.
Connected to Brew, Grok sends campaigns from your own domain to your audiences, with unsubscribes handled, after you approve.
xAI says custom connectors are available to all Grok users on grok.com. On Grok Business and Enterprise, an admin adds the connector first. Open Connectors: Go to grok.com/connectors, click New Connector and choose Custom. Add Brew: Enter https://brew.new/api/mcp and sign in to Brew. Grok finds Brew’s tools and uses them in your conversations. Ask Grok for an email: Describe the email or flow. Brew asks you to confirm before anything is sent or goes live.
xAI says connectors are available to all Grok users, so no paid plan is documented. On Grok Business and Enterprise, an admin adds the connector in the xAI console first.
Grok writes good copy, but on its own it does not design the email from your brand. Brew does: it writes your brand into files your agent reads for every email, then designs the layout, copy and images and tests how it renders.
No. Over OAuth, Brew asks you to confirm before anything is sent or goes live, so the assistant drafts and you approve.
xAI documents custom connectors for all Grok users. Grok is now sold through the X Subscription: Free, Plus at $8 a month, Premium at $30 and up. Brew is billed on emails sent and AI credits, with unlimited contacts on every plan: a free trial with 500 AI credits and 1,000 sends, then Growth at $99/month for 10,000 AI credits and 50,000 sends.
Brew publishes this comparison. Brew Team reviewed the linked first-party documentation. This is a documentation review, not a claim of hands-on testing of every product. Pricing and plan limits can change.
Work at xAI? If anything about Grok on this page is wrong or out of date, email support@brew.new and we will correct it.
Updated October 2026
