AI Email Writer | HubSpot vs Mailyr

HubSpot's AI Email Writer is an email assistant built into Marketing Hub that drafts marketing campaigns and sales outreach from text prompts. You pick an email template, use slash and highlight commands to generate or rewrite copy, then send and track everything from the same HubSpot CRM dashboard.

Standalone AI writing tools stop at the draft. HubSpot ties generation to your contact database, so personalization tokens pull from CRM records and campaign analytics log open rates and lead submissions automatically. That integration is the trade-off: you get less flexibility than a general-purpose writer, but you skip exporting copy into a separate ESP.

Marketing teams use it for blast campaigns and segmented messaging. Sales reps use it to generate cold outreach drafts at scale and customize tone, length, and spelling with inline commands. The free tier covers basic AI writing with no credit card; Starter, Professional, and Enterprise Marketing Hub plans unlock advanced automation and analytics.

Mailyr writes Gmail drafts from a subject line inside a Chrome extension, so you never leave your inbox to open a separate chat window. Open the composer in Gmail, type a subject, pick a tone and length, and the extension inserts a full draft you can edit before sending.

Compared with generic writing assistants, Mailyr stays inside Gmail and optimizes for outbound email speed rather than long documents. The free Starter tier runs on mid-tier models like GPT-4o mini and Gemini Flash with 14 complimentary credits, while Premium at $4.90 per month unlocks GPT-4o, Claude Sonnet, and 250 generated emails with faster throughput and priority support.

Busy professionals, founders, and support reps use Mailyr when they answer dozens of similar emails daily and want grammar-checked drafts without copying text between tabs.