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

# Pricing

> Understand how Darwin Search, Act, and provider charges are presented.

Darwin Search is free within the published [rate limits](/docs/admin/rate-limits). Act can involve Darwin usage, provider pricing, quote-based work, or an external purchase depending on the selected capability.

<CardGroup cols={3}>
  <Card title="Search" icon="search">Free within the published request limits.</Card>
  <Card title="Act" icon="sparkles">Uses the terms attached to the selected capability and exact revision.</Card>
  <Card title="Enterprise" icon="building">Custom capacity, support, and commercial requirements are handled with Darwin.</Card>
</CardGroup>

## Before work begins

Search results describe the available pricing mode and known bounds. When exact terms are not yet available, Darwin keeps the capability quote-based rather than inventing a price.

| Pricing state     | What to show                                                 |
| ----------------- | ------------------------------------------------------------ |
| Fixed             | Exact amount, currency, and included scope.                  |
| Bounded           | Returned minimum, maximum, and material conditions.          |
| Quote-based       | That a quote or clarification is still required.             |
| External purchase | Merchant, items, fees, currency, and expiry before approval. |

## Before a purchase or changed scope

Act pauses for review when work requires a consequential purchase or approval. Present the provider, merchant, items, amount, fees, currency, expiry, and reviewed payload exactly as Darwin returns them.

For current plans and commercial terms, see [Darwin pricing](https://darwin.so/pricing). Do not hard-code marketing prices into an integration.

## Build a truthful pricing UI

* Render values from the current Search result or Action state.
* Keep provider price separate from your own product's price or fee.
* Show quote requirements before starting work when they are known.
* Invalidate approval when the reviewed amount, merchant, payload, revision, or expiry changes.
* Never let a model estimate a missing price and present it as a Darwin value.