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Data residency for the OpenAI API

Eligible customers can now opt to store and process data with the United States or within Europe.

Updated this week

Effective April 14, 2025, we’ve released new models GPT‑4.1 and GPT‑4.1‑mini to succeed GPT-4o/4o-mini in the API. And we’ve launched a new model in the API: GPT-4o-nano.

The GPT 4.1 models are trained specifically for developers building with the OpenAI API. They outperform GPT-4o and GPT-4o mini across the board, with major gains in coding, instruction following, and long context understanding.

For more information about data residency for ChatGPT, please refer to our other help center article instead.

As of March 11, 2025, we’ve released the building blocks of our new Agents platform. For details, see our API docs for our Responses API, Tools including Web Search, File Search, and Computer Use, and our Agents SDK with Tracing.

Eligibility

Which customers can enable Data Residency when using the API?

OpenAI customers that have an Enterprise agreement can enable Data Residency after executing an amendment with OpenAI. Please note that for data residency in Europe, customers must also be eligible for Zero Data Retention.

How does Data Residency work?

Your requests and data for eligible endpoints and models will always be processed by OpenAI services running in the relevant region. If your request is to an Endpoint that requires data persistence to function, such as /v1/batches, then that data is always persisted in data centers within the region, to the extent supported.

Some non-sensitive data, such as billing or usage analytics, will be processed and stored outside Europe.

Which models and features are eligible for Data Residency?

The following models and API services are eligible for Data Residency today for the regions specified below.

Supported Services

Supported Model Snapshots

Region

Region

United States

Europe (EEA + Switzerland)*

/v1/chat/completions***

gpt-4.1-2025-04-14

gpt-4.1-mini-2025-04-14

gpt-4.1-nano-2025-04-14

o3-mini-2025-01-31

o3-2025-04-16

o4-mini-2025-04-16

o1-2024-12-17

o1-mini-2024-09-12

o1-preview

gpt-4o-2024-11-20

gpt-4o-2024-08-06

gpt-4o-mini-2024-07-18

gpt-4-turbo-2024-04-09

gpt-4-0613

gpt-3.5-turbo-0125

Yes

Yes

/v1/responses***

gpt-4.1-2025-04-14

gpt-4.1-mini-2025-04-14

gpt-4.1-nano-2025-04-14

o3-2025-04-16

o4-mini-2025-04-16

o1-pro

o1-pro-2025-03-19

computer-use-preview

o3-mini-2025-01-31

o1-2024-12-17

o1-mini-2024-09-12

o1-preview

gpt-4o-2024-11-20

gpt-4o-2024-08-06

gpt-4o-mini-2024-07-18

gpt-4-turbo-2024-04-09

gpt-4-0613

gpt-3.5-turbo-0125

Yes

Yes

/v1/images/generations

dall-e-3

Yes

Yes

/v1/audio/transcriptions

/v1/audio/translations

/v1/audio/speech

tts-1

whisper-1

gpt-4o-tts

gpt-4o-transcribe

gpt-4o-mini-transcribe

Yes

Yes

/v1/moderations

text-moderation-007

omni-moderation-latest

Yes

Yes

/v1/batches

gpt-4.1-2025-04-14

gpt-4.1-mini-2025-04-14

gpt-4.1-nano-2025-04-14

o3-2025-04-16

o4-mini-2025-04-16

o1-pro

o1-pro-2025-03-19

o3-mini-2025-01-31

o1-2024-12-17

o1-mini-2024-09-12

o1-preview

gpt-4o-2024-11-20

gpt-4o-2024-08-06

gpt-4o-mini-2024-07-18

gpt-4-turbo-2024-04-09

gpt-4-0613

gpt-3.5-turbo-0125

Yes

Yes

/v1/embeddings

text-embedding-3-small

text-embedding-3-large

text-embedding-ada-002

Yes

Yes

/v1/fine_tuning/jobs

/v1/files

gpt-4o-2024-08-06

gpt-4o-mini-2024-07-18

Yes

Yes

/v1/realtime (beta)

gpt-4o-realtime-preview-2024-12-17

gpt-4o-mini-realtime-preview-2024-12-17

Yes

No

Scale Tier

Yes

Yes

Structured Outputs (excluding schema)

Yes

Yes

/v1/vector_stores

Yes

Yes

/v1/responses File Search

Yes

Yes

/v1/responses Web Search

Yes

Yes

File Search

Yes

Yes

File Uploads

Yes, when used with base64 file uploads

Yes, when used with base64 file uploads

Supported Input Modalities

Text

Image

Audio/Voice

Text

Image**

Audio/Voice

* EU Region support is contingent on Customer being approved for Zero Data Retention for the applicable endpoints

** Zero Data Retention for image inputs is not included in standard Zero Data Retention and requires approval for enhanced Zero Data Retention.

*** For more details about Zero Data Retention in both our Completions API and Responses API please refer to the table in Default usage policies by endpoint.

How do I get started?

To get started, please reach out to your account representative at OpenAI, or get in touch with us here.

Functionality

How do I set up Data Residency?

Create a new project and select your desired region as the geography. Resources, such as inference engines or file storage under that Project, reside in that region. You cannot migrate an existing Project between regions.

For Europe, use https://eu.api.openai.com as your base URL instead of the default endpoint. All prompts and completions flow only through EU-based GPU infrastructure, and file storage (for features like Batch API) is in Azure Blob Storage geographically located within Europe. Metadata (e.g., billing, organization details) is still stored in the US.

What happens if I send traffic to the wrong endpoint?

If you send requests from an EU-located Project’s credentials to the US endpoint, you'll see an error. Ensure you use the correct endpoint (api.openai.com for US or eu.api.openai.com for Europe).

Can I use both US and Europe regions simultaneously?

Yes. Your Organization can contain Projects in the US and Projects in Europe at the same time. Traffic for each Project must route to the corresponding endpoint.

Will there be region-specific differences in features, models, or rate limits?

We strive for parity between our US and European regions. However, some capabilities—such as alpha and beta releases—may become available in the US first. Over time, we plan to align features as closely as possible.

Does authentication differ between regions?

You will have separate API keys for each region's Projects. The keys for a US-region Project won’t work on the Europe endpoint, and vice versa.

Are there plans for further regional expansions of the US and Europe?

We're currently exploring the possibility of expanding to additional regions. If you have feedback or a strong need for expansion in a specific region, we’d love to hear from you - feel free to contact our team!

Pricing

Are there any pricing differences when European Data Residency is enabled?

No. Your usage will be priced similarly across the US and Europe.

Is Scale Tier supported in the Europe region?

Yes. Scale Tier is fully supported. Rate limits in the Europe region match those in the US.

Europe-Specific FAQ

In which countries does inference physically occur?

Inference is restricted to the countries in the EEA (European Economic Area) plus Switzerland.

Will European Data Residency be available without ZDR?

We're currently exploring the possibility of providing European Data Residency without requiring ZDR. If you have feedback or a strong need for this capability, we’d love to hear from you—feel free to contact our team.

Does Europe Data Residency reduce latency for customers operating in Europe?

Yes, Europe-based users should experience a noticeable reduction in request latency compared to using US-based endpoints. This improvement is designed to bring response times more in line with those of US-based customers through a reduction in geographical latency.

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