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Anthropic Suffered Wide Claude Service Outage

The disruption impacted the company's chatbot, Claude Code, and Claude Cowork across all platforms this morning.

Updated on Sept. 29, 2026 in Artificial Intelligence

Bold flat-color editorial illustration showing a severed industrial data cable, representing a break in digital service infrastructure.
Anthropic's suite of AI services, including Claude and Claude Code, remained inaccessible to users nationwide on Tuesday following a significant system-wide service disruption. AI Illustration. Upload story photo >

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Anthropic experienced a significant service outage beginning shortly before 10 AM ET on September 29, 2026, which impacted its suite of AI tools including Claude, Claude Cowork, and Claude Code. The disruption currently affects web, desktop, and mobile applications.

Why it matters

The outage highlights the operational fragility of relying on centralized cloud-based AI services for integrated workflows like coding and project management. Users attempting to access these tools are currently met with request processing errors or loops.

Over 2,900 users reported service issues within four minutes of the outage onset. The incident has been classified by the company as a partial outage affecting Claude, Claude Cowork, and Claude Code.

The players

Anthropic

An AI research and deployment company that develops the Claude large language model family.

The details

Users accessing the platform encounter request processing error messages, while those attempting to sign up for accounts face an endless error loop. The outage encompasses the web interface, iOS and Android apps, and desktop software, effectively halting access to the company's large language model services.

Timeline

  1. September 29, 2026, 10 AM ET: The service interruption began.

  2. September 29, 2026, 10:04 AM ET: Over 2,900 issues were logged on Down Detector.

  3. September 29, 2026, 10:21 AM ET: Anthropic officially confirmed the partial outage on its status page.

The Tech Race

This disruption underscores the ongoing challenge of maintaining high availability for complex AI platforms compared to industry benchmarks for cloud infrastructure. The incident follows a pattern of scaling hurdles currently faced by major providers as they integrate LLMs into deeper software development workflows.

The outage effectively prevents users from utilizing Claude, Claude Cowork, and Claude Code on any platform until the company restores services. Users should consult the official Claude Status page for real-time updates regarding recovery progress.

The takeaway

Reliability remains a critical variable for developers incorporating LLM-based coding assistants into their daily stack. Watch the official status page for the confirmed restoration of full service capabilities.

Further reading

For more on the current state of infrastructure for large models, see our coverage in Artificial Intelligence.

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Do you trust cloud-based AI services to remain available when you need them most?