> ## 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

[genai/types.ts:35](https://github.com/wandb/weave/blob/6538626556c93d6f31ae725fdefe4e6b8b71bc2c/sdks/node/src/genai/types.ts#L35)

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### cacheReadInputTokens

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

#### Defined in

[genai/types.ts:36](https://github.com/wandb/weave/blob/6538626556c93d6f31ae725fdefe4e6b8b71bc2c/sdks/node/src/genai/types.ts#L36)

***

### inputTokens

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

#### Defined in

[genai/types.ts:32](https://github.com/wandb/weave/blob/6538626556c93d6f31ae725fdefe4e6b8b71bc2c/sdks/node/src/genai/types.ts#L32)

***

### outputTokens

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

#### Defined in

[genai/types.ts:33](https://github.com/wandb/weave/blob/6538626556c93d6f31ae725fdefe4e6b8b71bc2c/sdks/node/src/genai/types.ts#L33)

***

### reasoningTokens

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

#### Defined in

[genai/types.ts:34](https://github.com/wandb/weave/blob/6538626556c93d6f31ae725fdefe4e6b8b71bc2c/sdks/node/src/genai/types.ts#L34)