Pricing
Priced per word, not per vibe.
Every plan includes the API, the MCP server, the CLI, GitHub Actions and fact verification on every rewrite. The style check is free on all of them.
Free
Kick the tyres. No card.
$0 / month
- 10,000 rewrite words a month
- Up to 1,500 words per request
- API, MCP server, CLI and GitHub Actions
- Fact verification on every rewrite
Builder
most peopleFor the blog that writes itself.
$19 / month
- 300,000 rewrite words a month
- 5,000 words per request, 60 requests a minute
- Voice matching from your own samples
- Upgrade, downgrade or cancel anytime
Scale
Programmatic SEO, without the programmatic tone.
$79 / month
- 1,000,000 rewrite words a month
- 10,000 words per request, 120 requests a minute
- Everything in Builder
- Email support from an actual human
Prices in USD, billed monthly through Stripe. Taxes may apply depending on where you are.
Billing questions
- What counts as a word?
- Words in the text you send to /v1/rewrite, split on whitespace. Style checks are free and don't count. Requests that fail on our side are refunded automatically.
- What happens when I hit the limit?
- Rewrites return a 402 with an upgrade link until the next calendar month (UTC). Nothing is billed automatically beyond your plan.
- Can I cancel or switch plans?
- Anytime, from the billing portal on your account page. Cancelling keeps your plan until the end of the period you paid for.
- Do you offer refunds?
- If something went wrong, email support@sounday.ai within 14 days of a charge and we'll sort it out.