KEY POINTS
- Outage reports for ChatGPT down spiked around 1:00 AM GMT on Feb. 4, 2026.
- Affected users reported “Internal Server Errors” and failures in generating responses across web and mobile interfaces.
- The disruption occurs during a major infrastructure transition as OpenAI prepares to retire legacy GPT-4 models later this month.
SAN FRANCISCO — OpenAI confirmed early Wednesday it is investigating reports of service disruptions affecting ChatGPT, as thousands of users worldwide reported issues accessing the artificial intelligence platform.
The disruption was first noted by independent monitoring services, which recorded a surge in incident reports within a two hour window.
While OpenAI’s official status page initially listed all systems as “Operational,” it was later updated to reflect “investigating elevated error rates.”
”We are aware of an issue impacting ChatGPT and are working to restore service as quickly as possible,” an OpenAI spokesperson said in a brief statement early Wednesday.
Recent OpenAI Service Reliability Data
| Metric | Status (Feb. 4, 2026) | 30-Day Average |
|---|---|---|
| API Uptime | 99.1% | 99.8% |
| User Outage Reports | 47+ | 12 |
| Primary Error Code | 503 / 500 | N/A |
The current technical friction follows a series of updates to the GPT-5.2 “Extended Thinking” architecture.
Industry analysts suggest the platform’s increased complexity has made the “orchestration layer” the system that routes user prompts to the correct server clusters more susceptible to surges in traffic.
“As OpenAI moves toward more autonomous, long reasoning models, the compute requirements are becoming massive,” said Dr. Aris Thorne, a senior researcher at the Institute for AI Reliability. “These outages are often the result of load-balancing failures during peak global hours.”
“Our entire development pipeline relies on the ChatGPT API for code reviews,” said Julian Velez, Chief Technology Officer at Velez Dynamics. “Even an hour of downtime translates to thousands of dollars in lost productivity.”
OpenAI has not provided a definitive timeline for a full fix, though similar incidents in early 2026 were typically resolved within 90 minutes.
Users are advised to use alternative local models or offline backups until the green light is given on the official status dashboard.
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