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

# Getting started

> First steps with GMI Cloud middleware for tracking AI costs.

## Installation

```bash npm theme={null}
npm install @ai-billing/gmicloud @ai-billing/core @ai-sdk/gmicloud ai
```

```bash pnpm theme={null}
pnpm add @ai-billing/gmicloud @ai-billing/core @ai-sdk/gmicloud ai
```

```bash yarn theme={null}
yarn add @ai-billing/gmicloud @ai-billing/core @ai-sdk/gmicloud ai
```

## Overview

The `@ai-billing/gmicloud` package provides middleware for tracking token usage and calculating costs when using GMI Cloud models with the Vercel AI SDK.

It captures GMI Cloud-specific metrics, such as `completion_tokens_details.reasoning_tokens` and `prompt_tokens_details.cached_tokens`, ensuring that reasoning and prompt-caching costs are accurately reflected.

## Usage

To use the middleware, wrap your GMI Cloud model using `wrapLanguageModel` from the `ai` package and pass the `createGmicloudMiddleware`.

**1. Initialize the GMI Cloud provider**

First, set up the GMI Cloud provider using your API key.

```typescript theme={null}
import { createGmicloud } from '@ai-sdk/gmicloud';

const gmicloud = createGmicloud({
  apiKey: process.env.GMI_CLOUD_APIKEY,
});
```

**2. Define model pricing**

Set up a price resolver to define the costs for the models you'll be using. For GMI Cloud, you can specify costs for standard prompt/completion tokens and reasoning tokens.

```typescript theme={null}
import { createObjectPriceResolver } from '@ai-billing/core';

const priceResolver = createObjectPriceResolver({
  'deepseek-ai/DeepSeek-V4-Flash-0731': {
    promptTokens: 0.0000001,
    completionTokens: 0.0000003,
  },
});
```

**3. Create the billing middleware**

Initialize the GMI Cloud billing middleware. You need to provide a destination (such as `consoleDestination`) where billing events will be sent, along with your `priceResolver`.

```typescript theme={null}
import { createGmicloudMiddleware } from '@ai-billing/gmicloud';
import { consoleDestination } from '@ai-billing/core';

const billingMiddleware = createGmicloudMiddleware({
  destinations: [consoleDestination()],
  priceResolver: priceResolver,
});
```

**4. Wrap the model**

Use `wrapLanguageModel` from the `ai` package to apply the billing middleware to your GMI Cloud model.

```typescript theme={null}
import { wrapLanguageModel } from 'ai';

const wrappedModel = wrapLanguageModel({
  model: gmicloud('deepseek-ai/DeepSeek-V4-Flash-0731'),
  middleware: billingMiddleware,
});
```

**5. Use the wrapped model**

Finally, use the wrapped model with AI SDK functions like `generateText` or `streamText`. The billing middleware will automatically track tokens, handle reasoning and caching metrics, and calculate costs.

```typescript theme={null}
import { generateText } from 'ai';

const result = await generateText({
  model: wrappedModel,
  prompt: 'What is the capital of Sweden?',
});
```


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