google-managed changedbuild-with-claude/claude-models-on-google-cloud/google-managed

A whole new page. There's nothing to diff it against, so here is what it says.

---
title: Claude Models on Google Cloud (Google managed)
url: https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/google-managed
description: Google operates Claude Models on Google Cloud (Google managed) as part of Google Cloud's Agent Platform. You can call Claude with Anthropic's client SDKs.
---

[Claude Models on Google Cloud](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/overview) compares the two Google Cloud offerings. It also shows how to tell which one you use.

## Before making API calls

To use Claude Models on Google Cloud (Google managed), you need:

1. A Google Cloud project that can use Agent Platform. For setup steps, see Google Cloud's [Anthropic Claude models on Agent Platform](https://docs.cloud.google.com/gemini-enterprise-agent-platform/models/partner-models/claude) page.
2. The [gcloud CLI](https://cloud.google.com/sdk/docs/install) installed, for local development.
3. For the identity making the calls, an IAM role that includes the `aiplatform.endpoints.predict` permission, such as Agent Platform User (`roles/aiplatform.user`). For details, see Google Cloud's [Agent Platform partner models](https://docs.cloud.google.com/gemini-enterprise-agent-platform/models/partner-models/use-partner-models) page.
4. Google Cloud credentials for that identity. For the SDK examples, you might need to run `gcloud auth application-default login` to authenticate with Google Cloud. The cURL examples for Claude Models on Google Cloud (Google managed) get their token with `gcloud auth print-access-token`. That command uses the gcloud CLI's own login, not Application Default Credentials. For those examples, run `gcloud auth login` or `gcloud init` first.

### Install an SDK

Anthropic's [client SDKs](https://platform.claude.com/docs/en/cli-sdks-libraries/overview) support Claude Models on Google Cloud (Google managed) through `AnthropicVertex` (csharp: `AnthropicVertexClient`; go: `vertex.WithGoogleAuth`; java: `VertexBackend`; php: `Anthropic\Vertex\Client`; ruby: `Anthropic::VertexClient`). Install the package that provides it:

<Tabs>
  <Tab title="Python">
    ```bash
    pip install -U "anthropic[vertex]"
    ```
  </Tab>

  <Tab title="TypeScript">
    ```bash
    npm install @anthropic-ai/vertex-sdk
    ```
  </Tab>

  <Tab title="C#">
    ```bash
    dotnet add package Anthropic.Vertex
    ```
  </Tab>

  <Tab title="Go">
    ```bash
    go get github.com/anthropics/anthropic-sdk-go/v2
    ```
  </Tab>

  <Tab title="Java">
    <CodeGroup exclude="shell, python, typescript, csharp, go, php, ruby">
      ```groovy Gradle
      implementation("com.anthropic:anthropic-java:3.1.0")
      implementation("com.anthropic:anthropic-java-vertex:3.1.0")
      ```

      ```xml Maven
      <dependency>
          <groupId>com.anthropic</groupId>
          <artifactId>anthropic-java</artifactId>
          <version>3.1.0</version>
      </dependency>
      <dependency>
          <groupId>com.anthropic</groupId>
          <artifactId>anthropic-java-vertex</artifactId>
          <version>3.1.0</version>
      </dependency>
      ```
    </CodeGroup>
  </Tab>

  <Tab title="PHP">
    ```bash
    composer require anthropic-ai/sdk google/auth
    ```
  </Tab>

  <Tab title="Ruby">
    ```bash
    # Gemfile
    gem "anthropic"
    gem "googleauth"
    ```
  </Tab>
</Tabs>

The `ant` CLI doesn't support Claude Models on Google Cloud (Google managed).

## Making requests

Requests to Claude Models on Google Cloud (Google managed) go to an Agent Platform endpoint URL that ends in `:rawPredict`. Streaming requests use `:streamRawPredict` instead.

A request is nearly identical to a [Messages API](https://platform.claude.com/docs/en/api/messages/create) request. It differs in two main ways:

* **Model:** The endpoint URL names the model. In a cURL request, leave `model` out of the body.
* **Version:** In a cURL request, pass `anthropic_version` in the body, not as a header. Set it to `vertex-2023-10-16`, or to [API version `2026-10-21`](https://platform.claude.com/docs/en/api/migration-2026-10-21).

The following examples use the global endpoint. For the other endpoint types, see [Global, multi-region, and regional endpoints](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/google-managed#global-multi-region-and-regional-endpoints).

<CodeGroup exclude="shell:CLI">
  ```bash cURL
  curl https://aiplatform.googleapis.com/v1/projects/MY_PROJECT_ID/locations/global/publishers/anthropic/models/claude-opus-5-5:rawPredict \
    -H "Authorization: Bearer $(gcloud auth print-access-token)" \
    -H "Content-Type: application/json" \
    -d '{
      "anthropic_version": "vertex-2023-10-16",
      "messages": [{"role": "user", "content": "Hey Claude!"}],
      "max_tokens": 100
    }'
  ```

  <CodeGroupItem language="CLI">
    The `ant` CLI doesn't support Claude Models on Google Cloud (Google managed).
  </CodeGroupItem>

  ```python Python
  from anthropic import AnthropicVertex

  project_id = "MY_PROJECT_ID"
  region = "global"

  client = AnthropicVertex(project_id=project_id, region=region)

  message = client.messages.create(
      model="claude-opus-5-5",
      max_tokens=100,
      messages=[
          {
              "role": "user",
              "content": "Hey Claude!",
          }
      ],
  )
  print(message)
  ```

  ```typescript TypeScript
  import { AnthropicVertex } from "@anthropic-ai/vertex-sdk";

  const projectId = "MY_PROJECT_ID";
  const region = "global";

  // Goes through the standard `google-auth-library` flow.
  const client = new AnthropicVertex({
    projectId,
    region
  });

  const result = await client.messages.create({
    model: "claude-opus-5-5",
    max_tokens: 100,
    messages: [
      {
        role: "user",
        content: "Hey Claude!"
      }
    ]
  });
  console.log(JSON.stringify(result, null, 2));
  ```

  ```csharp C#
  using Anthropic.Models.Messages;
  using Anthropic.Vertex;

  var projectId = "MY_PROJECT_ID";
  var region = "global";

  var client = new AnthropicVertexClient(new AnthropicVertexCredentials(region, projectId));

  var parameters = new MessageCreateParams
  {
      Model = Model.ClaudeOpus5_5,
      MaxTokens = 100,
      Messages = [new UserMessageParam { Content = "Hey Claude!" }]
  };

  var message = await client.Messages.Create(parameters);
  Console.WriteLine(message);
  ```

  ```go Go
  import (
  	"context"
  	"fmt"

  	"github.com/anthropics/anthropic-sdk-go/v2"
  	"github.com/anthropics/anthropic-sdk-go/v2/vertex"
  )
  // ...
  	// Uses default Google Cloud credentials
  	client := anthropic.NewClient(
  		vertex.WithGoogleAuth(context.Background(), "global", "MY_PROJECT_ID"),
  	)

  	message, err := client.Messages.New(context.Background(), anthropic.MessageNewParams{
  		Model:     anthropic.ModelClaudeOpus5_5,
  		MaxTokens: 100,
  		Messages: []anthropic.MessageParam{
  			anthropic.NewUserMessage(anthropic.NewTextBlock("Hey Claude!")),
  		},
  	})
  	if err != nil {
  		panic(err)
  	}
  	fmt.Printf("%+v\n", message)
  ```

  ```java Java
  import com.anthropic.client.AnthropicClient;
  import com.anthropic.client.okhttp.AnthropicOkHttpClient;
  import com.anthropic.models.messages.Message;
  import com.anthropic.models.messages.MessageCreateParams;
  import com.anthropic.models.messages.Model;
  import com.anthropic.vertex.backends.VertexBackend;
  import com.google.auth.oauth2.GoogleCredentials;

  void main() throws Exception {
      AnthropicClient client = AnthropicOkHttpClient.builder()
          .backend(
              VertexBackend.builder()
                  .googleCredentials(GoogleCredentials.getApplicationDefault())
                  .region("global")
                  .project("MY_PROJECT_ID")
                  .build()
          )
          .build();

      Message message = client
          .messages()
          .create(
              MessageCreateParams.builder()
                  .model(Model.CLAUDE_OPUS_5_5)
                  .maxTokens(100)
                  .addUserMessage("Hey Claude!")
                  .build()
          );

      IO.println(message);
  }
  ```

  ```php PHP
  <?php

  use Anthropic\Messages\TextBlock;
  use Anthropic\Vertex;

  $client = Vertex\Client::fromEnvironment(
      region: 'global',
      projectId: 'MY_PROJECT_ID',
  );

  $message = $client->messages->create(
      maxTokens: 100,
      messages: [
          ['role' => 'user', 'content' => 'Hey Claude!']
      ],
      model: 'claude-opus-5-5',
  );

  foreach ($message->content as $block) {
      if ($block instanceof TextBlock) {
          echo $block->text . PHP_EOL;
      }
  }
  ```

  ```ruby Ruby
  require "anthropic"

  client = Anthropic::VertexClient.new(
    region: "global",
    project_id: "MY_PROJECT_ID"
  )

  message = client.messages.create(
    model: "claude-opus-5-5",
    max_tokens: 100,
    messages: [{role: "user", content: "Hey Claude!"}]
  )

  puts message.content.find { it.type == :text }.text
  ```
</CodeGroup>

### API model IDs

| Model                                                                                                 | Agent Platform API model ID  |
| :---------------------------------------------------------------------------------------------------- | :--------------------------- |
| Claude Fable 5.1                                                                                      | `claude-fable-5-1`           |
| Claude Mythos 5.1 ([limited availability](https://support.claude.com/en/articles/14604842))           | `claude-mythos-5-1`          |
| Claude Fable 5                                                                                        | `claude-fable-5`             |
| Claude Mythos 5 ([limited availability](https://support.claude.com/en/articles/14604842))             | `claude-mythos-5`            |
| Claude Opus 5.5                                                                                       | `claude-opus-5-5`            |
| Claude Opus 5                                                                                         | `claude-opus-5`              |
| Claude Opus 4.8                                                                                       | `claude-opus-4-8`            |
| Claude Opus 4.7                                                                                       | `claude-opus-4-7`            |
| Claude Opus 4.6                                                                                       | `claude-opus-4-6`            |
| Claude Opus 4.5                                                                                       | `claude-opus-4-5@20251101`   |
| Claude Opus 4.1 ([deprecated](https://platform.claude.com/docs/en/about-claude/model-deprecations))   | `claude-opus-4-1@20250805`   |
| Claude Opus 4 ([deprecated](https://platform.claude.com/docs/en/about-claude/model-deprecations))     | `claude-opus-4@20250514`     |
| Claude Sonnet 5.5                                                                                     | `claude-sonnet-5-5`          |

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