Foundry Tools
Formerly known as Azure AI Services or Azure Cognitive Services is a unified collection of prebuilt AI capabilities within the Microsoft Foundry platform
Why are grok models so unreliable? The service is always down.
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harmeet singh
45
Reputation points
Grok 4 models are not reliable and seem to always go down. I want to use these models in production app, but at this point the uncertainty of it being down are not allowing me to. I thought it would be temporary issue, but this has bee ongoing for two weeks now and models are always down.
HTTP 503: Service Unavailable","stack":"Error: retry.exhausted: HTTP 503: Service Unavailable
: no healthy upstream Please check this guide to understand why this error code might have been returned https://docs.microsoft.com/en-us/azure/machine-learning/how-to-troubleshoot-online-endpoints#http-status-codes | Apim-request-id: aafb3896-e55d-4944-afdd-a023abeb1f43
Foundry Tools
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harmeet singh 45 Reputation points
2025-11-06T17:40:28.5133333+00:00 I completley understand what you are saying, but this issue is exclusive to grok models, which seem to have a lot more downtime daily then any other model on Azure foundry. At this point the model is not even useable because of unreliability. This is not once in a while issue, this is occurring consistently.
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Anonymous2025-11-06T18:24:48.18+00:00 we have reached you in private message.please go through it.
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Anonymous
2025-11-10T17:28:23.2833333+00:00 Hi**Mansoor Chikte**
The team is aware of the problem and has been actively working to identify the root cause. Please wait for a while we will update you.
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Mansoor Chikte 45 Reputation points
2025-11-11T05:39:42.3033333+00:00 It has now been almost 36 hours that the model has been down, and we were informed that your team has been working on this issue since 23rd October. At this point, we urgently need clarity.
Could you please provide a concrete timeline for resolution? The current situation is becoming increasingly difficult to justify, and such prolonged disruption is simply not acceptable for our operations.
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Brian Schroeder 0 Reputation points2025-11-11T20:23:57.24+00:00 may I ask which models you're trying to access? I may be able to help. And their service is down because they are backdating and trying to erase the credit of "Elons" recent breakthroughs.
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Mansoor Chikte 45 Reputation points
2025-11-13T15:24:37.5266667+00:00 Hi Brian,
I am trying to access grok-4-fast-reasoning
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Anshika Varshney 15,625 Reputation points Microsoft External Staff Moderator2025-11-27T05:01:55.3266667+00:00 Hi harmeet singh,
Just checking in, Please confirm are you still facing the issue, or has your problem been resolved?
We apologise for the delay; there is an outage on our side which impacted service availability. Thank you for your patience and understanding.
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Christian 235 Reputation points2025-11-27T22:01:44.26+00:00 issue persist. screenshot from right now
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Anonymous
2026-02-04T13:25:40.8666667+00:00 Hi harmeet singh We apologise for the delay;Microsoft PG engineers are in sync with xAI team the issue got Mitigated by the xAI container enabled disaggregated PD to optimize xAI container's throughput and reduce latency,getting more capacity to make the model more responsive under production traffic.please try to check from your side
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Anonymous
2026-02-05T15:48:30.77+00:00
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