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Availability timeline for GPT-5.4-mini / GPT-5.4-nano in Azure AI Foundry Data Zone Standard (EU)

Aleksandr Bagatka 25 Reputation points
2026-04-23T07:43:55.4766667+00:00

Hello,

I would like to ask whether Microsoft can share an estimated timeline for availability of gpt-5.4-mini and gpt-5.4-nano in Azure AI Foundry Data Zone Standard deployments in the EU.

At the moment, the current model availability table shows these models available for Global Standard in EU regions, but for Data Zone Standard they appear to be available only in US regions.

A March blog post announcing these models stated that rollout also includes Data Zone EU.

My question is:

Can Microsoft provide an ETA, even a rough one, for when gpt-5.4-mini and gpt-5.4-nano will become available in EU Data Zone Standard?

This is important for us because:

  • gpt-4.1-mini is being deprecated and scheduled for retirement in October.
  • In EU Data Zone Standard, we currently do not have a reliable low-latency, non-deprecated replacement.
  • gpt-5-mini and gpt-5-nano are significantly slower for our workload than gpt-4.1-mini, even when using a minimal thinking budget.

If an ETA cannot be shared, it would still be very helpful to know one of the following:

  1. Whether EU Data Zone Standard support for these models is still planned.
  2. Whether rollout is expected before gpt-4.1-mini retirement.
  3. Whether Microsoft recommends any alternative low-latency model for EU Data Zone Standard in the meantime.

Thank you.

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A catalog of AI models in Microsoft Foundry that you can discover, compare, and deploy using Azure’s built‑in tools for evaluation, fine‑tuning, and inference

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Answer accepted by question author

SRILAKSHMI C 18,990 Reputation points Microsoft External Staff Moderator
2026-04-23T18:22:42.5666667+00:00

Hello Aleksandr Bagatka,

Thank you for reaching out.

I understand the importance of having a low-latency, non-deprecated model available in EU Data Zone Standard, especially with the planned retirement of gpt-4.1-mini in October 2026.

Current Availability

Based on the latest information:

gpt-5.4-mini and gpt-5.4-nano:

  • Are available in Global Standard deployments (including EU regions)
  • For Data Zone Standard, they are currently available only in US regions

The general rollout milestone for these models in Data Zone Standard is around March 17, 2026, but:

  • EU Data Zone Standard regions are not yet enabled
  • There is no confirmed ETA for EU availability at this time

Support for EU Data Zone Standard is planned and on the roadmap

However, the rollout is being done progressively by region

At this time, we cannot confirm whether EU availability will occur before the gpt-4.1-mini retirement

While waiting for EU Data Zone availability, you may consider the following:

1. Continue with GPT-5-mini / GPT-5-nano (EU Data Zone Standard)

Fully supported today in EU Data Zones

To improve latency:

  • Reduce max_tokens
  • Use minimal reasoning settings
  • Enable streaming

2. Use Global Standard (EU) for GPT-5.4-mini / nano

If your compliance requirements allow:

  • These models are already available in EU via Global Standard
  • This provides the closest replacement in terms of latency and capability

3. Consider Provisioned Throughput (PTU)

Provides dedicated capacity

Helps improve Latency consistency, Throughput predictability

Please refer this

Model availability (Data Zone Standard): https://learn.microsoft.com/azure/foundry/foundry-models/concepts/models-sold-directly-by-azure?tabs=datazone-standard

General region/table overview: https://learn.microsoft.com/azure/ai-foundry/openai/concepts/models#model-summary-table-and-region-availability

Model deprecations & retirements: https://learn.microsoft.com/azure/ai-services/openai/concepts/model-retirements

I Hope this helps. Do let me know if you have any further queries.

If this answers your query, please do click Accept Answer and Yes for was this answer helpful.

Thank you!

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