> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mythos.new/llms.txt
> Use this file to discover all available pages before exploring further.
# Credits & pricing
> Mythos is pay-as-you-go. Buy credits once, spend them on builds and edits. No subscriptions, no monthly reset, no expiry. New accounts get 5 free credits.
Mythos runs on **credits**, not subscriptions. You buy a pack of credits once and spend them as you
build. There is **no monthly fee, no monthly reset, and no expiry** — credits sit in your account
until you use them. New accounts start with **5 free credits** so you can build something before you
pay anything.
**Build vs Plan mode are both included** — answering questions and reviewing a plan in
[Plan mode](/features/plan-mode) costs nothing; you only spend credits when a build actually runs.
## What a credit is
A credit is the unit you spend on a generation. One action — a new project, an edit — costs a fixed
number of credits, charged when the build starts and **refunded in full if the build fails**.
## What actions cost
| Action | Cost | What you get |
| ------------------ | ----------- | ----------------------------------------------------------------------- |
| **New project** | 3 credits | A full project scaffolded from your prompt, in a new private repository |
| **Edit** | 2 credits | A change applied to an existing project (a new commit) |
| **Template remix** | 5 credits | A ready-made multi-page template forked into your own project |
| Sign-up bonus | **+5 free** | Granted once, when you confirm your account |
A clear first prompt saves edits. Describing the sections, tone, and any data model up front
often gets you there in one build instead of three. See [Writing good prompts](/prompting/writing-good-prompts).
## Packs
You buy credits in packs, paid in **USDT on the TRON network (TRC-20)**.
| Pack | Credits | Price | Per credit | Good for |
| ------------------------ | ------- | ----- | ---------- | ----------------------------------------- |
| **Pro** *(most popular)* | 100 | \$30 | \$0.30 | ≈ 33 new projects or ≈ 50 edits |
| **Ultra** | 1,000 | \$270 | \$0.27 | ≈ 333 new projects — 10% off the Pro rate |
Both packs include a private repository per project (export to your own GitHub anytime), your choice
of Vite + React or Next.js 16, and a priority preview queue. Ultra adds direct Telegram support.
**Credits from any pack never expire.**
## Buy credits
Go to **Pricing** from your dashboard or the credits menu.
Choose Pro or Ultra. The checkout shows the exact USDT amount to send.
Send the shown amount from any TRON wallet to the checkout address. The payment is identified by its unique amount — no memo or tag is needed.
Once the transfer confirms on TRON, the credits land in your balance automatically.
A top-up moves through a few states after you send the payment:
| State | What you see | What you do |
| ---------- | ------------------------------------------------ | ----------------------------------------- |
| Pending | Checkout waiting for the transfer | Send the exact USDT amount shown |
| Confirming | Transfer seen, waiting for on-chain confirmation | Wait — TRON confirmation is usually quick |
| Credited | Credits appear in your balance | Start building |
Mythos uses non-custodial crypto checkout — you pay on-chain in USDT/USDC on TRC-20. There is no
card subscription to cancel; you simply buy more credits when you run low.
## If a build fails, you are not charged
Every generation ends in exactly one of two outcomes — a delivered result, or a clean refund. You are
never charged for a build that did not deliver.
| Outcome | What you see | What happens to your credits |
| ------------------------ | ----------------------------------------- | ------------------------------------------- |
| **Delivered** | A result card with a preview | Spent (3 for a build, 2 for an edit) |
| **Failed / interrupted** | A short message that something went wrong | **Refunded in full** — re-prompt at no cost |
## Referrals
Invite someone with your referral link. When a person you referred makes their **first top-up of \$30
or more**, you receive **50 credits** — one reward per referred person.
## FAQ
No. Credits never expire — there is no monthly reset and nothing to lose by buying ahead.
No. Mythos is entirely pay-as-you-go. You buy credit packs once and spend them at your own pace.
In USDT (or USDC) on the TRON network (TRC-20), from any TRON wallet. The checkout shows the exact amount to send.
You are refunded the full cost automatically. You are only ever charged for a build that delivers a result.
Roughly: Pro (100 credits) ≈ 33 new projects or 50 edits; Ultra (1,000) ≈ 333 new projects. Most projects mix builds and edits, so your mileage varies.
Only volume and rate — Ultra is the same product at a 10% lower per-credit price, plus direct Telegram support. There are no feature tiers.
## Related
* [Welcome to Mythos](/introduction/welcome) — what Mythos is.
* [Quick start](/introduction/getting-started) — spend your first credits building something.
* [Writing good prompts](/prompting/writing-good-prompts) — fewer edits, fewer credits.