Technology
Latest News: Todays Latest News Headlines from India & World | Hindustan Times | Hindustan Times

OpenAI down: ChatGPT and Codex not working as users report 'Unexpected status 401' error amid outage

Source Entity

Latest News: Todays Latest News Headlines from India & World | Hindustan Times | Hindustan Times

September 27, 2026
OpenAI down: ChatGPT and Codex not working as users report 'Unexpected status 401' error amid outage

OpenAI's ChatGPT and Codex services experienced a significant outage marked by 'Unexpected status 401' errors. Users reported service disruptions across multiple platforms, with outage-tracking site Downdetector confirming the incident began on Friday evening.

Technical Disruption at OpenAI: Analyzing the Recent Service Outage

The Scope of the Incident

Recent reports indicate that OpenAI’s core services, specifically ChatGPT and the Codex programming model, suffered a widespread service disruption. Users attempting to access these tools were met with persistent errors, most notably an "Unexpected status 401," which typically signals an authentication failure. According to data provided by Downdetector, the surge in user reports began at approximately 6:55 p.m. EDT on a Friday, suggesting a sudden and significant failure in the company's server-side operations or API authentication infrastructure.

Understanding the '401' Error Code

In the context of web services, a 401 error code serves as a standard HTTP response indicating that the request lacks valid authentication credentials. When users report receiving an "Unexpected status 401: Incorrect API key" error, it often points to a breakdown in the handshake process between the client and OpenAI's servers. Whether this was caused by a database corruption, a failed deployment of a security patch, or a synchronization issue with the company's internal authentication servers, the widespread nature of the error suggests a systemic fault rather than localized user issues.

Impact on Developers and Casual Users

The simultaneous failure of both ChatGPT and Codex underscores the shared infrastructure underpinning OpenAI's product suite. While ChatGPT is the primary interface for casual users, Codex acts as a critical engine for developers building applications on top of OpenAI’s models. The disruption caused significant friction, as evidenced by reports of users encountering "Error in message stream" prompts and being unable to resume active sessions, even after attempting to switch browsers and hardware configurations.

Implications of Infrastructure Reliability

As OpenAI’s models become increasingly integrated into professional workflows and third-party software, such outages highlight the risks of relying on centralized, cloud-based AI services. When the authentication layer fails, it effectively renders the dependent software useless. This incident serves as a reminder to both developers and enterprises regarding the necessity of implementing robust error handling and failover strategies when integrating LLMs (Large Language Models) into their own production environments.

Future Trends and Resilience

Moving forward, as OpenAI scales to accommodate millions of daily active users, the company will likely focus heavily on enhancing the redundancy of its authentication and API gateway layers. The ability to mitigate such outages in real-time is crucial for maintaining the trust of enterprise clients who require high availability. This event emphasizes that even the most advanced AI platforms remain vulnerable to the fundamental challenges of distributed systems management and network reliability.