Region and endpoints

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Region overview

The region determines the access point and data storage location. Choose a nearby region to reduce latency.

• Service deployment scope: determines the inference execution location. The Singapore region uses the International deployment scope, which includes global nodes outside the Chinese mainland.
• Endpoint: affects concurrency limits, timeouts, and other service guarantees. Each region has independent endpoints.

A complete model invocation flow works as follows:

1. The application sends a request to the selected region through the endpoint, and the request data is stored in that region.
2. The access region forwards the request to an inference node within the service deployment scope for computation. Transmission is encrypted end-to-end.
3. The inference result returns to the access region for storage and is then returned to the application. User static data is always stored in the selected region.

The current region is Singapore. The service deployment scopes supported by this region are as follows:

Region	Service deployment scope
Singapore	International (global nodes excluding Chinese mainland)

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Endpoints

Model Studio provides three types of endpoints for model inference APIs in the Singapore region: workspace-specific endpoints, DashScope endpoints, and trial endpoints. These are suitable for scenarios ranging from trial experiences to enterprise-level production. Workspace-specific endpoints are recommended. The key differences are as follows:

Item	Workspace-specific endpoint (recommended)	DashScope endpoint	Trial endpoint
Endpoint format	{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com	dashscope-intl.aliyuncs.com	trial.ap-southeast-1.maas.aliyuncs.com
Applicable scenario	Recommended for production environments. Provides higher concurrency capacity and network isolation, ensuring stable, low-latency access in high-traffic scenarios.	For existing business compatibility. We recommend migrating to the workspace-specific endpoint.	For quick trials and functional validation. Not recommended for production environments.
Authentication method	Access only the current workspace	Access all workspaces	Access all workspaces
Rate limit	RPM and TPM vary by model and are aggregated at the Alibaba Cloud account level	RPM and TPM vary by model and are aggregated at the Alibaba Cloud account level	RPM is 1000 (at the Alibaba Cloud account level); TPM varies by model
Request timeout	3600 seconds	600 seconds	600 seconds
Protocol support	HTTP, SSE, WebSocket, WebRTC, AOQ (AI over QUIC)	HTTP, SSE, WebSocket	HTTP, SSE
SLA	99.9%	99.9%	Not provided

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Access information

The Singapore region has independent endpoints, API keys, and model lists. These cannot be mixed across regions.

Region	Region ID	Workspace-specific endpoint	DashScope endpoint	Trial endpoint	API Key	Model list
Singapore	ap-southeast-1	{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com	dashscope-intl.aliyuncs.com	trial.ap-southeast-1.maas.aliyuncs.com	API key management	Available models

You do not need to select a service deployment scope when creating a workspace in the Singapore region.

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Migrate to workspace-specific endpoints

Migrating from a DashScope endpoint or trial endpoint to a workspace-specific endpoint requires only two steps, with no need to modify business logic code:

1. Obtain the workspace-specific endpoint: On the Workspace Management page, copy the content in the API Host column.
2. Replace the domain name in the request address: Replace the original domain name in your code with the copied API Host (for example, llm-xxx.ap-southeast-1.maas.aliyuncs.com). llm-xxx is the workspace ID. The request addresses for APIs in the Singapore region are as follows:
   • OpenAI-compatible API: replace https://dashscope-intl.aliyuncs.com/compatible-mode/v1 with https://llm-xxx.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1
   • DashScope API: replace https://dashscope-intl.aliyuncs.com/api/v1 with https://llm-xxx.ap-southeast-1.maas.aliyuncs.com/api/v1
   • Anthropic-compatible API: replace https://dashscope-intl.aliyuncs.com/apps/anthropic with https://llm-xxx.ap-southeast-1.maas.aliyuncs.com/apps/anthropic

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Feature support

Region	Real-time inference	Batch inference	Model experience	Model monitoring (basic)	Model monitoring (advanced)	Model alerting	Transmission security	Permission management	Model fine-tuning
Singapore	Supported	Supported	Supported	Supported	Supported	Supported	Supported	Supported	Supported

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Related documents

• Tongyi Qianwen API reference
• Recommended models — Models and context lengths by region
• Model inference pricing — Pricing by region /Singapore/
• Rate limiting— RPM and TPM limits
• Obtain an API key — Create and manage API keys
• Base URL overview — Model service endpoints
• Regions and endpoints - More region information