> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bult.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Billing

## Billing Overview

Bult keeps billing clear: you pay the **subscription fee in advance**, and **usage charges are billed at the end of each monthly period**. Credits and included usage cover usage costs but do **not** apply to subscription fees.

### Plans & Compute Sizes

Bult offers several subscription plans along with different compute sizes. Each compute size has fixed resources and pricing.

#### Free Trial

* **Price:** \$0
* **Duration:** 7 days
* **Included:** One-time \$5 credits, applied only to usage charges.
* **Compute Size Available:**
  * **XS (Static Sites)** — 0.1 vCPU / 256 MB RAM — \$2.70 / month
  * **S (Small Apps)** — 0.25 vCPU / 512 MB RAM — \$5.40 / month
* **Volume Size Available:** 512MB
* **End of trial:**
  * Ends automatically after 7 days, or
  * Ends earlier if the \$5 trial credits are fully used. Deployments are paused unless you upgrade to a paid plan. On upgrade, remaining credits are carried over to the paid plan.

#### Starter

* **Price:** \$5 / month (paid up front at start of cycle)
* **Best for:** Developers moving into production workloads.
* **Compute Sizes Available:**
  * **M (Web Apps)** — 0.5 vCPU / 1 GB RAM — \$12.00 / month
  * **L (APIs)** — 1 vCPU / 2 GB RAM — \$24.00 / month
  * **XL (Databases)** — 2 vCPU / 4 GB RAM — \$48.00 / month
* **Volume Size Available:** Up to 50GB
* **Included usage:** \$5 worth of usage covered each month (non-accumulative, resets each cycle).

#### Pro *(coming soon)*

* **Price:** \$20 / month (paid up front at start of cycle)
* **Best for:** Teams or heavier users needing larger compute and collaboration features.
* **Compute Sizes Planned:**
  * **2XL (High Traffic)** — 4 vCPU / 8 GB RAM — \$96.00 / month
  * **3XL (Enterprise)** — 8 vCPU / 16 GB RAM — \$192.00 / month
* **Volume Size Planned:** Up to 250GB
* **Included usage:** \$20 worth of usage covered each month (non-accumulative, resets each cycle).

***

### Plan Comparison

| Plan         | Subscription Fee             | Included Usage Coverage           | Duration |
| ------------ | ---------------------------- | --------------------------------- | -------- |
| Free Trial   | \$0                          | One-time \$5 credits (usage only) | 7 days   |
| Starter      | \$5 / month (paid up front)  | \$5 usage / month                 | Monthly  |
| Pro *(soon)* | \$20 / month (paid up front) | \$20 usage / month                | Monthly  |

***

### Compute Sizes Reference

Here are the compute sizes you can pick from, and their pricing:

| Compute Size     | vCPU | RAM    | Monthly Cost  |
| ---------------- | ---- | ------ | ------------- |
| XS Static Sites  | 0.1  | 256 MB | \$2.70 / mo   |
| S Small Apps     | 0.25 | 512 MB | \$5.40 / mo   |
| M Web Apps       | 0.5  | 1 GB   | \$12.00 / mo  |
| L APIs           | 1    | 2 GB   | \$24.00 / mo  |
| XL Databases     | 2    | 4 GB   | \$48.00 / mo  |
| 2XL High Traffic | 4    | 8 GB   | \$96.00 / mo  |
| 3XL Enterprise   | 8    | 16 GB  | \$192.00 / mo |

***

### Credits

* Every new account starts with **\$5 free credits** during the trial.
* Credits apply **only to usage charges**, not to subscription fees.
* If trial credits are used up, deployments will stop unless you upgrade to a paid plan.
* Unused trial credits carry over when upgrading.
* Credits are **non-refundable** once used.

***

### Usage

* Usage includes computes (CPU / RAM) and storage.
* Paid plans include usage coverage equal to the plan’s subscription fee, which resets every cycle.
* Usage charges above the included coverage are billed at the **end of the month**.
* To protect against extreme usage, occasional mid-cycle invoices may be issued when usage grows unusually high.

#### Example 1: Free Trial Credits Exhausted

* During trial you use consume all trial **\$5** in usage.
* Trial ends and deployments stop unless upgraded.

#### Example 2: Usage Below Included Coverage

* You are on Starter plan (\$5/month) with \$5 included usage.
* You use **\$2.70** in usage.
* That usage is fully covered. The leftover \$2.30 of included usage is waived for that cycle.
* You pay only the **\$5** subscription fee.

#### Example 3: Usage Above Included Coverage

* You are on Starter plan (\$5/month) with \$5 included usage.
* Usage = **\$7.00**.
* First \$5 covered, \$2 billed in usage.
* Total you pay **\$5** for subscription fee and **\$2** for extra usage.

***

### Refunds

* Contact [team@bult.ai](mailto:team@bult.ai) within **14 days** of the charge.