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

# Billing & Credits

> Understand BrainGrid's credit-based billing, model pricing, and BYOK options.

BrainGrid uses a credit-based system that gives you control over usage. Choose your model, top up as needed, or bring your own API key.

## Plans & Pricing

BrainGrid requires a paid plan—there's no free trial. Choose monthly or yearly billing (yearly saves about two months). All plans are priced per seat.

| Plan        | Monthly    | Yearly                | Monthly credits | Projects  | Users     |
| ----------- | ---------- | --------------------- | --------------- | --------- | --------- |
| Builder     | \$29/seat  | $24/seat ($290/yr)    | 5,000           | Up to 3   | 1         |
| Builder Pro | \$99/seat  | $83/seat ($990/yr)    | 20,000          | Up to 25  | Unlimited |
| Team        | \$199/seat | $166/seat ($1,990/yr) | 50,000          | Unlimited | Unlimited |

Yearly prices show the effective monthly rate; the full amount is billed once per year (shown in parentheses). Credits reset on your billing date each month.

## Credit Top-Ups

Purchase additional credits anytime. Larger packs offer better value.

| Pack    | Price | Per Credit | Savings |
| ------- | ----- | ---------- | ------- |
| 1,000   | \$10  | \$0.0100   | —       |
| 5,000   | \$45  | \$0.0090   | 10% off |
| 11,750  | \$100 | \$0.0085   | 15% off |
| 50,000  | \$400 | \$0.0080   | 20% off |
| 100,000 | \$750 | \$0.0075   | 25% off |

Purchased credits are shared across your organization and valid for 12 months.

## Model Selection

Choose from a range of models and set a default for your organization.

| Model             | Best For                                                                                    |
| ----------------- | ------------------------------------------------------------------------------------------- |
| Gemini 3.5 Flash  | Fast, affordable tasks (Google)                                                             |
| Gemini 3.1 Pro    | Deep reasoning (Google)                                                                     |
| Claude Haiku 4.5  | Fast, affordable tasks (Anthropic)                                                          |
| Claude Sonnet 4.6 | Fast, capable everyday tasks like requirement breakdowns and quick edits (Anthropic)        |
| Claude Opus 4.7   | Most capable, with adaptive thinking for complex analysis and detailed planning (Anthropic) |

## Credit Rates

How credits are consumed per token.

| Model            | Type   | Credits/Token |
| ---------------- | ------ | ------------- |
| Gemini 3.5 Flash | Input  | 0.0000355     |
| Gemini 3.5 Flash | Output | 0.000177      |
| Gemini 3.1 Pro   | Input  | 0.000071      |
| Gemini 3.1 Pro   | Output | 0.000354      |
| Haiku 4.5        | Input  | 0.000142      |
| Haiku 4.5        | Output | 0.000708      |
| Sonnet 4.6       | Input  | 0.000425      |
| Sonnet 4.6       | Output | 0.002125      |
| Opus 4.7         | Input  | 0.000708      |
| Opus 4.7         | Output | 0.003542      |

## Bring Your Own Key (BYOK)

Connect your own AI provider API key—Anthropic or Google—to pay the provider directly. BrainGrid charges a reduced platform fee in credits: 15% of the standard rate for Anthropic models (Haiku, Sonnet, Opus), and no platform fee for Gemini models.

**BYOK rates per token (credits):**

| Model            | Type   | Credits/Token |
| ---------------- | ------ | ------------- |
| Gemini 3.5 Flash | Input  | 0             |
| Gemini 3.5 Flash | Output | 0             |
| Gemini 3.1 Pro   | Input  | 0             |
| Gemini 3.1 Pro   | Output | 0             |
| Haiku 4.5        | Input  | 0.0000213     |
| Haiku 4.5        | Output | 0.0001062     |
| Sonnet 4.6       | Input  | 0.00006375    |
| Sonnet 4.6       | Output | 0.00031875    |
| Opus 4.7         | Input  | 0.0001062     |
| Opus 4.7         | Output | 0.0005313     |

## FAQ

<AccordionGroup>
  <Accordion title="What happens when I run out of credits?" icon="circle-question">
    You can access your epics and requirements, but you won't be able to use the agent.
  </Accordion>

  <Accordion title="Do unused credits roll over?" icon="arrows-rotate">
    Monthly plan credits reset each billing cycle. Purchased top-ups are valid for 12 months.
  </Accordion>

  <Accordion title="How do I select the model?" icon="shuffle">
    In **Settings** → **Organization**, you can set the default model for your organization.
  </Accordion>

  <Accordion title="How do I add my own AI provider API key?" icon="key">
    Go to **Settings** → **AI Provider API Keys** → Add your Anthropic or Google API key.
  </Accordion>

  <Accordion title="What happens if my API key gets rate limited?" icon="gauge">
    You can choose to fallback to BrainGrid credits when your key gets rate limited.
  </Accordion>
</AccordionGroup>