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

# Interface: Usage

> TypeScript SDK reference

[weave](../) / Usage

## Table of contents

### Properties

* [cacheCreationInputTokens](./usage#cachecreationinputtokens)
* [cacheReadInputTokens](./usage#cachereadinputtokens)
* [inputTokens](./usage#inputtokens)
* [outputTokens](./usage#outputtokens)
* [reasoningTokens](./usage#reasoningtokens)

## Properties

### cacheCreationInputTokens

• `Optional` **cacheCreationInputTokens**: `number`

#### Defined in

[src/genai/types.ts:41](https://github.com/wandb/weave/blob/9591aba8a5e77309ee0858e5ba94d31c1bd7e404/sdks/node/src/genai/types.ts#L41)

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### cacheReadInputTokens

• `Optional` **cacheReadInputTokens**: `number`

#### Defined in

[src/genai/types.ts:42](https://github.com/wandb/weave/blob/9591aba8a5e77309ee0858e5ba94d31c1bd7e404/sdks/node/src/genai/types.ts#L42)

***

### inputTokens

• `Optional` **inputTokens**: `number`

#### Defined in

[src/genai/types.ts:38](https://github.com/wandb/weave/blob/9591aba8a5e77309ee0858e5ba94d31c1bd7e404/sdks/node/src/genai/types.ts#L38)

***

### outputTokens

• `Optional` **outputTokens**: `number`

#### Defined in

[src/genai/types.ts:39](https://github.com/wandb/weave/blob/9591aba8a5e77309ee0858e5ba94d31c1bd7e404/sdks/node/src/genai/types.ts#L39)

***

### reasoningTokens

• `Optional` **reasoningTokens**: `number`

#### Defined in

[src/genai/types.ts:40](https://github.com/wandb/weave/blob/9591aba8a5e77309ee0858e5ba94d31c1bd7e404/sdks/node/src/genai/types.ts#L40)