Per email sent
The plan sets a monthly volume of messages, with a rate beyond it.
Watch for: Volume pricing suits transactional and API use, and a large list on a weekly send can cost more than a per contact plan.
Tools for this job
AI Email Marketing and Deliverability Tools
AI email marketing tools for drafting campaigns, designing templates, timing sends and warming inboxes, with the send, contact and credit limits each plan sets.
In this category
7 Tools
Listed alphabetically, because nothing here is ranked. Compare them against the selection criteria on the right and the billing models below.
| Tool | What it does | Starts at | Getting started |
|---|---|---|---|
 Maverick | Klaviyo inbox placement and subject line testing, plus personalized video priced per send | 300 USD per month for the Starter personalized video plan, with Optimizer Pro and video Pro quoted on request | Free trial |
 Migma.ai | Brief-to-email generator with a free Hobby plan and no published Premium price | Not published | Free tier |
 Neural Newsletters | Finds articles by topic and drafts summarised newsletters, sold at 49 USD a month | 49 USD per month on NeuralNews Monthly, or 400 USD billed yearly | Free trial |
 Notification Harbor | API-first email platform that writes campaigns from a brief, billed on sends not contacts | 49 USD per month for Crew (Starter is free), rising to custom pricing for Fleet | Free tier |
 Seventh Sense | Per-person email send time optimization, for HubSpot and Marketo only | 400 USD per month for 25,000 contacts, about 0.192 USD per contact per year | Free trial |
 Stripo's AI Assistant | Multi-email campaign drafting inside the Stripo email editor, priced by plan exports | 20 USD a month for Basic on monthly billing, rising to 125 USD a month for Pro | Free tier |
 Warmy | Email warm-up and inbox placement monitoring, sold by warm-up volume with a 7 day trial | 49 USD per month for B2B and B2C senders, volume-based, with a custom plan on request | Free trial |
How to shop this category
Email has the oldest tooling in marketing and AI is being added at three points: drafting copy and designs, deciding when and to whom to send, and getting mail to the inbox in the first place.
Platform fit comes first. Several tools in this category work only with one or two email systems, and a draft that has to be copied across by hand loses most of its time saving. Entries here name the platforms each tool connects to.
The metering unit varies more than the price. Sends, contacts, credits and warm-up volume each cap a different part of the work, so the plan that fits depends on list size and send frequency.
Be careful with deliverability claims. Mailbox providers decide where mail lands, so a vendor can improve authentication and reputation but cannot guarantee placement. Where an entry records a promise, it says what the page measures and what it does not.
Before you compare prices
How Tools in This Category Actually Bill
Headline prices are rarely comparable, because vendors here charge for different things. These are the models you will meet and what each one hides.
Per contact or subscriber
Cost scales with the size of the list you store or send to.
Watch for: Inactive contacts still count on many platforms. Clean the list before comparing tiers.
Monthly credits for AI drafting
Generating campaigns or templates draws from an allowance that resets.
Watch for: A full email with design and copy can use several credits, and unused credits rarely roll over.
Per mailbox or warm-up volume
Deliverability tools charge by connected inbox or by how many warm-up emails they send.
Watch for: Several sending domains multiply the cost, and warm-up has no value if the domain's authentication is broken.
Run this during the trial
What to Test, and What the Result Tells You
"Evaluate output quality" is not a test. These are specific things to do while you still have a free trial, and what each outcome actually means.
- 1
Send one AI drafted campaign through to a real test list on your own platform.
What it tells you: Whether the draft arrives in your platform, formatted and editable, decides if the tool saves time or adds a copy and paste step.
- 2
Check your SPF, DKIM and DMARC records and then see whether the tool reports on them.
What it tells you: Authentication is the base of deliverability, and a tool that ignores it cannot fix inbox placement.
- 3
Run the same campaign to a seed list or inbox placement test before and after any deliverability change.
What it tells you: Placement is measurable, so a vendor claiming improvement should show a before and after on your own domain.
- 4
Compare a send time or subject line recommendation against a holdout group.
What it tells you: A winner reported without a control is a guess, and small lists produce noise.
- 5
Count the credits one full email design uses on your plan.
What it tells you: Credits describe the cap in the vendor's unit, and the cost per finished email is the only comparable number.
You may not need to buy anything
What You Probably Already Own
Some of this job is already covered by tools you pay for or can use free. Worth ruling out before adding a subscription.
- The AI drafting built into your email platform
- Subject lines, copy and sometimes layouts, included in plans you may already pay for.
- Free authentication checks such as Google Postmaster Tools
- Domain reputation and spam rate for mail sent to Gmail, at no cost.
- A general AI assistant
- Drafting and rewriting email copy, which a paid seat does when given your brand notes and past emails.
Claims that do not survive scrutiny
Red Flags in This Category
- Inbox placement guarantees, since mailbox providers control delivery.
- Warm-up tools that fake engagement at volume on a domain you intend to use for real mail.
- Send time claims with no control group or sample size.
- Pricing that counts every stored contact, including those that never receive a message.
Questions
Email Marketing FAQs
Can AI improve my email open rates?
It can speed up drafting and testing of subject lines. Open rates are also distorted by privacy features that preload mail, so judge a change by clicks and replies rather than opens.
Is email warm-up worth paying for?
It matters for a new sending domain or mailbox that needs to build reputation. It does not fix a domain with broken authentication or a list of people who did not ask for the mail.
Do I need a new email platform to use AI drafting?
Often not. Check whether the tool connects to the platform you already use, and whether it writes the draft into it or hands you a file to import.