Free
$0per month
For trying it on your parts.
- Monthly usage that may vary, at lower priority
- Projects with any number of chats
- Design around your own STEP parts
- Revert and fork any turn
- Export STEP, STL and 3MF
Pricing. Start free, then choose the plan that fits your work.
Plans
Starter
$20per month
For a part now and then.
- Everything in Free
- A set amount of usage each month, at full priority
Pro
$50per month
For regular design work.
- Everything in Starter
- 3× Starter's usage
Studio
$100per month
For designing every day.
- Everything in Pro
- 7× Starter's usage
Custom
For more usage than Studio, at a price agreed with you.
Prices exclude sales tax and VAT, which are added at checkout where they apply.
How usage works
- Every plan includes monthly usageTurns use your plan's monthly amount of AI model use. Building, checking, rendering and exports are included. Your account shows how much you've used, as a percentage.
- A turn counts when it endsA turn is one message and everything the agent does for it. It counts for the model requests it made, whether it finishes, fails or you stop it.
- At 100%, new turns waitA turn that's running always finishes, and what it uses past 100% isn't carried over. New turns start again when your usage resets, or right away if you upgrade.
- Change plans any timeAn upgrade starts a new month on the new plan at once, and what's left of your current month comes off its first payment. A lower plan, or Free, starts when your plan renews.
Questions
How much can I do with a plan?
It depends on how much the agent reads, builds and checks. A small change to one feature uses less than a new enclosure around several parts. Your account shows each turn's share of the month, so you can see what your work uses.
Do stopped or failed turns count?
Yes, for the model requests they made. Stopping a turn keeps your design as it was before the turn.
What happens at 100%?
New turns wait until your usage resets, or you can upgrade to continue at once. Your projects, their history and exports stay available.
Does unused usage carry over?
No. Each month starts with your plan's full amount.
Can a plan's usage change?
We set how much each plan includes from what the AI model costs, so it can change when the model's prices do. A change applies from your next renewal, never to a month you've already paid for. Free has lower priority, and its usage may vary.
Can I export on the Free plan?
Yes. Every plan has the same export options: STEP, STL or 3MF, every part or a chosen few, in one file or one file per part.
Who takes the payment?
Plans are sold through Link, by Stripe, which takes the payment, adds any sales tax or VAT where you are, and sends the receipts. Extrastep never sees your card. To cancel, choose Free on your account page: your plan stays until the end of the month you paid for.
Can I get a refund?
Purchases are final. We refund a charge made in error if you email support@extrastep.ai within 14 days of the charge. Email us before disputing a charge with your bank.
Who can see my designs?
Your projects live in your own workspace, and no other account can open them. The AI model's provider receives what each turn needs. Security and your data explains how your files are handled.