Last updated 08-13-2026
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Mailyr
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.
Chrome extension opens a composer directly inside Gmail without switching apps
Premium plan includes 250 AI-generated emails per month at $4.90
Model options include GPT-4o, Claude Sonnet, Gemini Flash, and GPT-4o mini
Starter tier provides 14 complimentary credits on mid-tier models at no cost
Tone and length controls let you adjust draft style before inserting into Gmail
Stripe-processed subscriptions with cancel-anytime billing on paid plans
Drafts emails inside Gmail so you avoid copying text from a separate AI chat tab.
Low Premium price at $4.90 per month for 250 generated emails.
Supports multiple frontier models including GPT-4o and Claude Sonnet on paid plans.
Works only as a Gmail Chrome extension rather than a standalone email client.
Free tier caps usage at 14 complimentary credits with slower generation.
Enterprise pricing requires contacting sales instead of self-serve checkout.
What is Mailyr?
Mailyr is a Chrome extension that drafts Gmail emails from your subject line using models such as GPT-4o. You open the composer in Gmail, generate a draft, insert it with one click, and send.
How much does Mailyr cost?
Mailyr Starter is free with 14 complimentary credits on mid-tier models. Premium costs $4.90 per month for 250 emails, faster generation, and access to GPT-4o and Claude Sonnet.
Does Mailyr work with Gmail only?
Mailyr is built as a Gmail Chrome extension. The workflow starts in Gmail where you open the Mailyr composer, generate a draft, and insert it directly into your message.
Which AI models does Mailyr use?
Mailyr routes drafts through GPT-4o, GPT-4o mini, Claude Sonnet, and Gemini Flash depending on your plan. Premium unlocks the latest flagship models with faster generation speeds.
Is there a free plan for Mailyr?
Mailyr offers a free Starter plan with 14 complimentary credits, mid-tier model access, and 48-hour support. Paid Premium adds 250 monthly emails and priority support.
Can teams use Mailyr?
Mailyr Enterprise supports unlimited emails and unlimited team members with 24/7 priority support. Teams with high volume needs contact Mailyr directly for enterprise pricing.