Weaviate's integration with Azure OpenAI's APIs allows you to access their models' capabilities directly from Weaviate.

[Configure a Weaviate vector index](#configure-the-vectorizer) to use an Azure OpenAI embedding model, and Weaviate will generate embeddings for various operations using the specified model and your Azure OpenAI API key. This feature is called the _vectorizer_.

At [import time](#data-import), Weaviate generates text object embeddings and saves them into the index. For [vector](#vector-near-text-search) and [hybrid](#hybrid-search) search operations, Weaviate converts text queries into embeddings.

![Embedding integration illustration](/assets/docs/weaviate/model-providers/_includes/integration_openai_azure_embedding.png)

## Requirements

### Weaviate configuration

Your Weaviate instance must be configured with the Azure OpenAI vectorizer integration (`text2vec-openai`) module.

:::accordion{title="For Weaviate Cloud (WCD) users"}
This integration is enabled by default on Weaviate Cloud (WCD) instances.
:::

:::accordion{title="For self-hosted users"}
- Check the [cluster metadata](../monitoring-and-logging/status.md#cluster-metadata) to verify if the module is enabled.
- Follow the [how-to configure modules](../how-to-configure-weaviate/modules.md) guide to enable the module in Weaviate.
:::

### API credentials

You must provide a valid Azure OpenAI API key to Weaviate for this integration. Go to [Azure OpenAI](https://ai.azure.com/) to sign up and obtain an API key.

Provide the API key to Weaviate using one of the following methods:

- Set the `AZURE_APIKEY` environment variable that is available to Weaviate.
- Provide the API key at runtime, as shown in the examples below.

:::code-group{sync="languages"}
```python title="Python"
# Recommended: save sensitive data as environment variables
azure_key = os.getenv("AZURE_API_KEY")
```

```typescript title="JavaScript/TypeScript"
const azureApiKey = process.env.AZURE_API_KEY || '';  // Replace with your inference API key
```

```goraw title="Go"
"X-Azure-Api-Key": os.Getenv("AZURE_API_KEY"),
```
:::

## Configure the vectorizer

[Configure a Weaviate index](../how-to-manage-collections/vector-config.md#specify-a-vectorizer) as follows to use an Azure OpenAI embedding model:

To select the model, specify the Azure resource name.

:::code-group{sync="languages"}
```python title="Python" {5-12}
from weaviate.classes.config import Configure

client.collections.create(
    "DemoCollection",
    vector_config=[
        Configure.Vectors.text2vec_azure_openai(
            name="title_vector",
            source_properties=["title"],
            resource_name="<azure-resource-name>",
            deployment_id="<azure-deployment-id>"
        )
    ],
    # Additional parameters not shown
)
```

```typescript title="JavaScript/TypeScript" {9-17}
await client.collections.create({
  name: 'DemoCollection',
  properties: [
    {
      name: 'title',
      dataType: 'text' as const,
    },
  ],
  vectorizers: [
    weaviate.configure.vectors.text2VecAzureOpenAI({
      name: 'title_vector',
      sourceProperties: ['title'],
      resourceName: '<azure-resource-name>',
      deploymentId: '<azure-deployment-id>',
    },
    ),
  ],
  // Additional parameters not shown
});
```

```goraw title="Go" {1-21}
// Define the collection
basicAzureVectorizerDef := &models.Class{
  Class: "DemoCollection",
  VectorConfig: map[string]models.VectorConfig{
    "title_vector": {
      Vectorizer: map[string]interface{}{
        "text2vec-openai": map[string]interface{}{
          "properties":   []string{"title"},
          "resourceName": "<azure-resource-name>",
          "deploymentId": "<azure-deployment-id>",
        },
      },
    },
  },
}

// add the collection
err = client.Schema().ClassCreator().WithClass(basicAzureVectorizerDef).Do(ctx)
if err != nil {
  panic(err)
}
```
:::

:::accordion{title="Vectorization behavior"}
Weaviate follows the collection configuration and a set of predetermined rules to vectorize objects.

Unless specified otherwise in the collection definition, the default behavior is to:

- Only vectorize properties that use the `text` or `text[]` data type (unless [skipped](../how-to-manage-collections/vector-config.md#property-level-settings))
- Sort properties in alphabetical (a-z) order before concatenating values
- If `vectorizePropertyName` is `true` (`false` by default) prepend the property name to each property value
- Join the (prepended) property values with spaces
- Prepend the class name (unless `vectorizeClassName` is `false`)
- Convert the produced string to lowercase

<!-- TODO: Add an actual example -->
:::

### Vectorizer parameters

The following examples show how to configure Azure OpenAI-specific options.

- `resource_name` (Required): The name of the Azure OpenAI resource to use.
- `deployment_id` (Required): The deployment ID of the Azure OpenAI resource.
- `base_url` (Optional): The base URL of the Azure OpenAI API.

:::code-group{sync="languages"}
```python title="Python" {5-14}
from weaviate.classes.config import Configure

client.collections.create(
    "DemoCollection",
    vector_config=[
        Configure.Vectors.text2vec_azure_openai(
            name="title_vector",
            source_properties=["title"],
            resource_name="<azure-resource-name>",
            deployment_id="<azure-deployment-id>",
            # # Further options
            # base_url="<custom_azure_url>",
        )
    ],
    # Additional parameters not shown
)
```

```typescript title="JavaScript/TypeScript" {9-19}
await client.collections.create({
  name: 'DemoCollection',
  properties: [
    {
      name: 'title',
      dataType: 'text' as const,
    },
  ],
  vectorizers: [
    weaviate.configure.vectors.text2VecAzureOpenAI({
      name: 'title_vector',
      sourceProperties: ['title'],
      resourceName: '<azure-resource-name>',
      deploymentId: '<azure-deployment-id>',
      // Further options
      // baseURL: '<custom_azure_url>'
    },
    ),
  ],
  // Additional parameters not shown
});
```

```goraw title="Go" {1-22}
// Define the collection
azureVectorizerFullDef := &models.Class{
  Class: "DemoCollection",
  VectorConfig: map[string]models.VectorConfig{
    "title_vector": {
      Vectorizer: map[string]interface{}{
        "text2vec-openai": map[string]interface{}{
          "properties":   []string{"title"},
          "resourceName": "<azure-resource-name>",
          "deploymentId": "<azure-deployment-id>",
          // "baseURL":      "<custom-azure-url>",
        },
      },
    },
  },
}

// add the collection
err = client.Schema().ClassCreator().WithClass(azureVectorizerFullDef).Do(ctx)
if err != nil {
  panic(err)
}
```
:::

For further details on these parameters, see consult the [Azure OpenAI API documentation](https://learn.microsoft.com/en-us/azure/ai-services/openai/).

## Header parameters

You can provide the API key as well as some optional parameters at runtime through additional headers in the request. The following headers are available:

- `X-Azure-Api-Key`: The Azure API key.
- `X-Azure-Deployment-Id`: The Azure deployment ID.
- `X-Azure-Resource-Name`: The Azure resource name.

Any additional headers provided at runtime will override the existing Weaviate configuration.

Provide the headers as shown in the [API credentials examples](#api-credentials) above.

## Data import

After configuring the vectorizer, [import data](../how-to-manage-objects/import.md) into Weaviate. Weaviate generates embeddings for text objects using the specified model.

:::code-group{sync="languages"}
```python title="Python" {13-20}
source_objects = [
    {"title": "The Shawshank Redemption", "description": "A wrongfully imprisoned man forms an inspiring friendship while finding hope and redemption in the darkest of places."},
    {"title": "The Godfather", "description": "A powerful mafia family struggles to balance loyalty, power, and betrayal in this iconic crime saga."},
    {"title": "The Dark Knight", "description": "Batman faces his greatest challenge as he battles the chaos unleashed by the Joker in Gotham City."},
    {"title": "Jingle All the Way", "description": "A desperate father goes to hilarious lengths to secure the season's hottest toy for his son on Christmas Eve."},
    {"title": "A Christmas Carol", "description": "A miserly old man is transformed after being visited by three ghosts on Christmas Eve in this timeless tale of redemption."}
]

collection = client.collections.use("DemoCollection")

with collection.batch.fixed_size(batch_size=200) as batch:
    for src_obj in source_objects:
        # The model provider integration will automatically vectorize the object
        batch.add_object(
            properties={
                "title": src_obj["title"],
                "description": src_obj["description"],
            },
            # vector=vector  # Optionally provide a pre-obtained vector
        )
        if batch.number_errors > 10:
            print("Batch import stopped due to excessive errors.")
            break

failed_objects = collection.batch.failed_objects
if failed_objects:
    print(f"Number of failed imports: {len(failed_objects)}")
    print(f"First failed object: {failed_objects[0]}")
```

```typescript title="JavaScript/TypeScript"
let srcObjects = [
  { title: "The Shawshank Redemption", description: "A wrongfully imprisoned man forms an inspiring friendship while finding hope and redemption in the darkest of places." },
  { title: "The Godfather", description: "A powerful mafia family struggles to balance loyalty, power, and betrayal in this iconic crime saga." },
  { title: "The Dark Knight", description: "Batman faces his greatest challenge as he battles the chaos unleashed by the Joker in Gotham City." },
  { title: "Jingle All the Way", description: "A desperate father goes to hilarious lengths to secure the season's hottest toy for his son on Christmas Eve." },
  { title: "A Christmas Carol", description: "A miserly old man is transformed after being visited by three ghosts on Christmas Eve in this timeless tale of redemption." }
];
```

```goraw title="Go" {9-44}
var sourceObjects = []map[string]string{
  {"title": "The Shawshank Redemption", "description": "A wrongfully imprisoned man forms an inspiring friendship while finding hope and redemption in the darkest of places."},
  {"title": "The Godfather", "description": "A powerful mafia family struggles to balance loyalty, power, and betrayal in this iconic crime saga."},
  {"title": "The Dark Knight", "description": "Batman faces his greatest challenge as he battles the chaos unleashed by the Joker in Gotham City."},
  {"title": "Jingle All the Way", "description": "A desperate father goes to hilarious lengths to secure the season's hottest toy for his son on Christmas Eve."},
  {"title": "A Christmas Carol", "description": "A miserly old man is transformed after being visited by three ghosts on Christmas Eve in this timeless tale of redemption."},
}

// Convert items into a slice of models.Object
objects := []models.PropertySchema{}
for i := range sourceObjects {
  objects = append(objects, map[string]interface{}{
    // Populate the object with the data
    "title":       sourceObjects[i]["title"],
    "description": sourceObjects[i]["description"],
  })
}

// Batch write items
batcher := client.Batch().ObjectsBatcher()
for _, dataObj := range objects {
  batcher.WithObjects(&models.Object{
    Class:      "DemoCollection",
    Properties: dataObj,
  })
}

// Flush
batchRes, err := batcher.Do(ctx)

// Error handling
if err != nil {
  panic(err)
}
for _, res := range batchRes {
  if res.Result.Errors != nil {
    for _, err := range res.Result.Errors.Error {
      if err != nil {
        fmt.Printf("Error details: %v\n", *err)
        panic(err.Message)
      }
    }
  }
}
```
:::

:::callout{intent="tip" title="Re-use existing vectors"}
If you already have a compatible model vector available, you can provide it directly to Weaviate. This can be useful if you have already generated embeddings using the same model and want to use them in Weaviate, such as when migrating data from another system.
:::

## Searches

Once the vectorizer is configured, Weaviate will perform vector and hybrid search operations using the specified Azure OpenAI model.

![Embedding integration at search illustration](/assets/docs/weaviate/model-providers/_includes/integration_openai_azure_embedding_search.png)

### Vector (near text) search

When you perform a [vector search](../how-to-query-search/similarity.md#search-with-text), Weaviate converts the text query into an embedding using the specified model and returns the most similar objects from the database.

The query below returns the `n` most similar objects from the database, set by `limit`.

:::code-group{sync="languages"}
```python title="Python" {3-6}
collection = client.collections.use("DemoCollection")

response = collection.query.near_text(
    query="A holiday film",  # The model provider integration will automatically vectorize the query
    limit=2
)

for obj in response.objects:
    print(obj.properties["title"])
```

```typescript title="JavaScript/TypeScript"
const collectionName = 'DemoCollection'
const myCollection = client.collections.use(collectionName)
```

```goraw title="Go" {1-9}
nearTextResponse, err := client.GraphQL().Get().
  WithClassName("DemoCollection").
  WithFields(
    graphql.Field{Name: "title"},
  ).
  WithNearText(client.GraphQL().NearTextArgBuilder().
    WithConcepts([]string{"A holiday film"})).
  WithLimit(2).
  Do(ctx)

if err != nil {
  panic(err)
}
fmt.Printf("%v", nearTextResponse)
```
:::

### Hybrid search

:::callout{intent="info" title="What is a hybrid search?"}
A hybrid search performs a vector search and a keyword (BM25) search, before [combining the results](../how-to-query-search/hybrid.md) to return the best matching objects from the database.
:::

When you perform a [hybrid search](../how-to-query-search/hybrid.md), Weaviate converts the text query into an embedding using the specified model and returns the best scoring objects from the database.

The query below returns the `n` best scoring objects from the database, set by `limit`.

:::code-group{sync="languages"}
```python title="Python" {3-6}
collection = client.collections.use("DemoCollection")

response = collection.query.hybrid(
    query="A holiday film",  # The model provider integration will automatically vectorize the query
    limit=2
)

for obj in response.objects:
    print(obj.properties["title"])
```

```typescript title="JavaScript/TypeScript"
const collectionName = 'DemoCollection'
const myCollection = client.collections.use(collectionName)
```

```goraw title="Go" {1-9}
hybridResponse, err := client.GraphQL().Get().
  WithClassName("DemoCollection").
  WithFields(
    graphql.Field{Name: "title"},
  ).
  WithHybrid(client.GraphQL().HybridArgumentBuilder().
    WithQuery("A holiday film")).
  WithLimit(2).
  Do(ctx)

if err != nil {
  panic(err)
}
fmt.Printf("%v", hybridResponse)
```
:::

## References

### Available models

See the [Azure OpenAI documentation](https://learn.microsoft.com/en-us/azure/ai-services/openai/concepts/models#embeddings-models) for a list of available models and their regional availability.

## Further resources

### Other integrations

- [Azure OpenAI generative models + Weaviate](openai-azure-generative.md).

### Code examples

Once the integrations are configured at the collection, the data management and search operations in Weaviate work identically to any other collection. See the following model-agnostic examples:

- The [How-to: Manage collections](../how-to-manage-collections/index.md) and [How-to: Manage objects](../how-to-manage-objects/index.md) guides show how to perform data operations (i.e. create, read, update, delete collections and objects within them).
- The [How-to: Query & Search](../how-to-query-search/index.md) guides show how to perform search operations (i.e. vector, keyword, hybrid) as well as retrieval augmented generation.

### External resources

- Azure OpenAI [API documentation](https://learn.microsoft.com/en-us/azure/ai-services/openai/)
- Azure OpenAI [models and availability](https://learn.microsoft.com/en-us/azure/ai-services/openai/concepts/models#embeddings-models)

## Questions and feedback

Have a question or feedback? Here's how to reach us.

::::card-grid
:::card{title="Community Forum" href="https://forum.weaviate.io/c/support" icon="messages-square"}
Ask questions and connect with other developers on our **Community forum**.
:::

:::card{title="Support" href="/guides/support-overview" icon="life-buoy"}
Weaviate Cloud user or customer? Find the right channel on the **Support page**.
:::
::::

## Related pages

- [Agents](./agents-index.md)
- [AI-assisted Weaviate code generation](./ai-assisted-vibe-coding-index.md)
- [APIs](./apis-index.md)
- [Authorization and authentication](./authorization-and-authentication-index.md)
- [Benchmarks](./benchmarks-index.md)
- [Best practices](./best-practices-index.md)
- [Client libraries](./clients-index.md)
- [Client Libraries / SDKs](./client-libraries-index.md)
- [Cloud](./cloud-index.md)
- [Cloud account management](./cloud-account-management-index.md)

# Agent Instructions

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source-cited answer instead of crawling page by page, append the `?ask=`
query parameter to any page URL on this site:

    /guides/quickstart?ask=how+do+I+authenticate

Optional parameters:

- `&goal=<what-you-are-trying-to-do>` steers the answer toward your
  objective (e.g. `&goal=write+a+python+client`).
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For the full corpus map read `llms.txt` at the site root; for the tool
surface (search + page fetch as MCP tools) see `/mcp`.
