AI that earns its credits.
Subject-line ranking, body composer with tone control, and an 18-point pre-send spam-score check — built into every workspace, with a generous monthly credit allowance.
Less staring at a blank subject line.
AI assist on subject lines, body copy, and a pre-send spam-score check. Every plan includes a monthly credit allowance — from 10 on Hobby up to 2,000 on Business — and Starter signups get 500 one-time credits to play with.
Subject composer
Bring tone, length, and audience hints. Get 3–10 ranked options you can A/B test in one click.
Body composer
Start from a brief, expand a paragraph, rewrite with a different tone, or repurpose a winning campaign.
Spam-score & pre-send
Catches risky words, broken links, missing unsubscribe, and tracking-domain gaps before you hit send.
One credit gets you one generation.
Simple, predictable cost. No surprise bills, no token math, no "rate-limit hit during a launch" stories.
Subject lines
3–10 ranked options from a single brief. Tone, length, audience hints all configurable.
Body composer
Expand a brief, rewrite a paragraph, change tone, or repurpose a winning campaign — each pass is 1 credit.
Spam-score check
18-point pre-send check: risky words, link tracking, missing unsub headers, plain-text presence, and more.
Free on every plan, including Hobby.
Credits refresh monthly with your billing cycle. New Starter signups get an extra 500 one-time bonus to play with.
How operators actually use it.
Stop A/B-testing 1 subject line at a time
Get 10 ranked subject-line candidates in a few seconds. Pick the top 2, run a 50/50 split, auto-ship the winner.
Repurpose a winning campaign
Paste a campaign that performed well. The AI rewrites it for a new audience, tone, or product — same skeleton, fresh copy.
Catch deliverability gaps before you send
Pre-send check flags risky words, untrackable links, and missing unsubscribe headers — so you fix them in the editor, not after a complaint.
Generate variants for every segment
Same campaign, segment-specific copy. Loop the AI over your segments and ship customized variants in minutes, not hours.
What everyone asks first.
Pricing-specific questions live on /pricing. Below covers what the AI does, what it costs you, and what we do (and don't) do with your data.
One credit per generation: 1 subject-line batch (3–10 options) = 1 credit, 1 body draft or rewrite = 1 credit, 1 pre-send spam-score check = 1 credit. You see your remaining credits in the workspace header.
We run frontier-class models (currently a mix of Anthropic Claude and OpenAI GPT-4 family) behind a single internal API. Models are swapped as benchmarks improve — your interface stays the same.
AI features pause until your monthly allowance refreshes on the next billing date, or until you upgrade your plan. The rest of EmailSendX (campaigns, automations, contacts, analytics) keeps working — AI is additive, not gated.
Not on the standard plans — we want predictable cost-per-credit and consistent prompt engineering. Custom (Enterprise) plans can use bring-your-own API keys; ask sales.
No. Prompts and outputs are not used to train any model. We route every call to the provider with training opt-out flags set, and we do not retain prompt history beyond the user-facing generation log.
It can — but the best results come from giving it a brief (audience, goal, tone, length) and iterating. The AI is an accelerator for the operator, not a replacement for knowing your list.
Still have questions?
Reply to any product email or drop us a note — answers come from the engineer who shipped the feature, not a triage form.
Start with 500 free credits.
New Starter signups get a one-time 500 credit bonus on top of the monthly allowance. Plenty of room to find out whether the AI earns its keep on your workflow.
Claim 500 credits