Title: TokenUsage::__construct
Published: May 20, 2026

---

# TokenUsage::__construct( int $promptTokens, int $completionTokens, int $totalTokens, int|null $thoughtTokens = null )

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#wp--skip-link--target)

Constructor.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#parameters)󠁿

 `$promptTokens`intrequired

Number of tokens in the prompt.

`$completionTokens`intrequired

Number of tokens in the completion, including any thought tokens.

`$totalTokens`intrequired

Total number of tokens used.

`$thoughtTokens`int|nulloptional

Number of tokens used for thinking, as a subset of completion tokens.

Default:`null`

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#source)󠁿

    ```php
    public function __construct(int $promptTokens, int $completionTokens, int $totalTokens, ?int $thoughtTokens = null)
    {
        $this->promptTokens = $promptTokens;
        $this->completionTokens = $completionTokens;
        $this->totalTokens = $totalTokens;
        $this->thoughtTokens = $thoughtTokens;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/results/dto/tokenusage.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Results/DTO/TokenUsage.php#L59)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Results/DTO/TokenUsage.php#L59-L65)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#related)󠁿

| Used by | Description | 
| [TokenUsage::fromArray()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/fromarray/)`wp-includes/php-ai-client/src/Results/DTO/TokenUsage.php` |

{@inheritDoc}

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/__construct/?output_format=md#changelog)󠁿

| Version | Description | 
| [0.1.0](https://developer.wordpress.org/reference/since/0.1.0/) | Introduced. |

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