How long was ChatGPT down in December 2025?

The outage lasted approximately 42 minutes, from 2:30 PM ET to 3:12 PM ET when OpenAI completed the mitigation rollout.

What is the 'Code Red' declaration at OpenAI?

On December 1, 2025, an internal memo declared a 'code red' situation at OpenAI, instructing staff to shift attention and resources to address critical issues.

ChatGPT Outage December 2025 - Complete Timeline & User Reports

Q: Why did ChatGPT go down on December 2, 2025?

OpenAI reported the outage was caused by a 'routing misconfiguration' that affected users worldwide starting around 2:30 PM ET.

Q: How many users were affected by the December 2025 ChatGPT outage?

According to Downdetector, approximately 3,000 users reported issues. However, with ChatGPT serving 300+ million weekly active users, the actual impact was likely much larger.

December 2, 2025: Major Global Outage

Thousands of users worldwide were cut off from ChatGPT due to a "routing misconfiguration"

3,000+

Reported Issues on Downdetector

42 min

Total Outage Duration

300M+

Weekly Active Users Potentially Affected

CODE RED

Internal Memo Dec 1st

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Timeline of Events

December 1, 2025 - Internal Memo

"Code Red" Declaration

An internal company memo declared a "code red" situation, instructing OpenAI staff to shift attention and resources. This preceded the next day's outage.

December 2, 2025 - 2:30 PM ET

Outage Begins

Users across multiple platforms—web, mobile app, and API—began reporting unresponsive chat interfaces. Many saw only a black dot when attempting to generate responses.

December 2, 2025 - Peak Reports

3,000+ Users Report Issues

Downdetector logged approximately 3,000 user reports. Social media flooded with complaints from frustrated users unable to access ChatGPT.

December 2, 2025 - 3:12 PM ET

Mitigation Complete

OpenAI completed the mitigation rollout, restoring service. The company cited a "routing misconfiguration" as the cause.

What Users Experienced

"The chat interface was completely unresponsive. All I could see was a black dot where my response should have been. I'm paying $20/month for this?"

"I was in the middle of an important work project when ChatGPT just died. No warning, no error message—just nothing."

"With 300 million weekly users, even a 30-minute outage represents millions of people disrupted. This is becoming unacceptable."

The Bigger Picture: December 2025 Issues

The December 2nd outage wasn't an isolated incident. Throughout December 2025, users have reported:

Slow or laggy responses, especially with GPT-4 models
Subscription payment and activation errors
Image generation quality complaints
Memory and context retention failures
Login errors and access issues
API timeouts affecting businesses

An OpenAI Community post warned users to "expect various errors during December 2025" due to ongoing construction and maintenance work.

Frequently Asked Questions

Why did ChatGPT go down on December 2, 2025?

OpenAI reported the outage was caused by a "routing misconfiguration" that affected users worldwide starting around 2:30 PM ET.

How many users were affected?

According to Downdetector, approximately 3,000 users formally reported issues. However, with ChatGPT serving 300+ million weekly active users, the actual number affected was likely in the millions.

How long was ChatGPT down?

The outage lasted approximately 42 minutes, from 2:30 PM ET to 3:12 PM ET.

What is the "Code Red" declaration?

On December 1, 2025, an internal OpenAI memo declared a "code red" situation, instructing staff to shift attention and resources to address critical issues. This preceded the December 2nd outage.

Is ChatGPT reliable for business use?

Given the frequency of outages and performance issues in 2025, many businesses are questioning ChatGPT's reliability. We recommend having backup alternatives in place.

Related Resources

Performance Decline Evidence 110+ User Horror Stories Better Alternatives to ChatGPT Complete Failure Timeline

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