Pricing

Every new account receives 5 credits after account confirmation. Use them for Builds, AI edits, or Plan responses. Build usage varies with the work requested. No card is required.

A completed Plan response uses 1 credit. Builds and AI edits use variable credits from 0.5, based on token and image API usage. Long Builds check in every 20 credits by default, so you can continue or finish the current work. Change the interval or turn check-ins off in Account settings. Check-ins are not a hard cap; finishing also uses credits. Your available balance always applies. Stopping a Build charges work already performed. A Template Remix is free (0 credits). AI changes after remixing use the normal Build pricing. If a Plan response fails before it is saved, its credit is returned.

Pro starts at $20 per month for 100 monthly credits, GitHub connections and two-way sync, project ZIP downloads, manual code editing, custom domains, team invitations, roles, and member credit limits. Business starts at $30 per month for 100 monthly credits and all Pro features, plus Room discussions, Messenger, restricted team projects, and workspace privacy and security controls. Both plans offer higher monthly credit allowances. Saved security restrictions remain in effect after a plan change. Feature access follows your subscription, so spending your last credit does not change your plan. Code viewing, private source history, and personal two-factor authentication are included on Free.

With an active Pro or Business subscription, the billing owner can buy credits once, enable automatic top-ups, or increase the monthly credit allowance in Billing. One-time and automatic top-ups cost $0.32 per credit on Pro and $0.48 on Business. One-time purchases start at 50 credits for $16 on Pro or $24 on Business. Automatic top-ups use an explicit balance threshold and calendar-month limit. If you cancel renewal, you can still buy top-ups until your paid period ends.

Monthly credits expire 60 days after each grant. Unused credits roll over with their original expiry date and no rollover amount cap. Top-up credits expire 12 months after each purchase. Credits with the closest expiry are used first. If your account returns to Free, unexpired monthly credits are frozen until you resubscribe; unexpired top-up and bonus credits remain available. See Billing for each grant's balance and expiry.

Subscriptions renew monthly at the price shown at checkout. Manage your subscription, payment details, and invoices in Billing. Review an upgrade's charge and added credits before confirming. Any increase in credits is prorated for the remaining part of your current billing cycle. Changes to a plan at the same or a lower monthly price take effect at the next billing cycle, with no charge or new credits today. If you cancel, your plan features remain available until the end of your paid period. Then your account returns to Free. Your projects and conversation history remain; credit availability follows the expiry and freezing rules above.

Stripe securely processes payments using the methods available at checkout. The checkout shows your final total before payment. For a refund of unused purchased credits, contact support within 30 days. Refund eligibility is described in our Terms of Service; statutory rights still apply.

GitHub connections and two-way sync on one selected branch require Pro or Business. If your subscription ends, sync pauses; your GitHub repository remains yours and you can still view or disconnect the connection. For a managed backend, authorize your own Supabase organization; your application data and provider billing stay under your control. Provider charges are separate from your Mythos subscription.

You do. Mythos keeps private source history while you build. You receive full commercial rights with no attribution requirement, and you can modify or deploy the code anywhere.