All features
AI assist
A writing assistant, when you want one.
Draft a campaign from a short brief, get subject lines and preview text, and rewrite what you highlight. Powered by Claude, and included on every paid plan.
Draft a whole campaign
Give it a short brief and get back a subject line, preview text, and full body — then make it your own.
Subject line ideas
Generate five alternative subject lines and pick the one that fits.
Edit with AI
Highlight any text and describe the change in plain words — and day3 rewrites just that selection.
Included on every paid plan
From $1/mo up. Bigger plans carry a bigger AI allowance, but no paid plan is without one — and every AI output stays inbox-ready with your merge tags intact.
Questions
- Which plans include the AI assistant?
- Every paid plan, starting at $1/mo. Higher tiers come with a larger AI allowance; the free set-up tier has none, since it can't send either.
- Which AI model does day3 use?
- It's powered by Claude (via OpenRouter). It can draft a campaign, suggest subject lines, write preview text, and rewrite selected copy — all kept inbox-ready.
- What happens when I use up my AI allowance?
- The AI tools switch off until the allowance resets — writing by hand carries on untouched. Moving up a plan buys a bigger allowance.