Anthropic confirms Claude is down in major outage affecting multiple services
Anthropic confirmed a major global infrastructure outage that disabled Claude AI services, including Claude Code, for thousands of users on August 17, 2026.
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📍 How it ended
Anthropic confirmed a major global outage that impacted thousands of users and multiple services with authentication and login errors. The infrastructure outage was later resolved, with services restored following a 35-minute disruption.
Epilogue added 87d ago, after coverage quieted.
The brief
The disruption was widespread, impacting thousands of users who found the system unavailable. Specifically, the outage disabled login capabilities and interrupted the functionality of Claude Code. Users encountering the issue reported receiving a specific error message stating that the authentication service was unavailable, which prevented them from accessing their accounts and utilizing the AI's services. Multiple news outlets tracked the event in real-time. BleepingComputer reported that Anthropic officially confirmed the major outage affecting multiple services.
The Hindustan Times focused on the user experience, highlighting the 'authentication service unavailable' error. Meanwhile, the Asbury Park Press noted that the unavailability impacted thousands of individuals. Coverage from Курс України explicitly linked the failure to both general login issues and the specific failure of Claude Code, providing a more detailed look at the affected tools. According to JournalArta, the event was classified as a global infrastructure outage. The duration of the disruption was relatively brief, with JournalArta reporting that services were restored following a 35-minute window of downtime.
This context suggests a systemic failure at the infrastructure level rather than a localized glitch, as it impacted the ability of users globally to authenticate their identities and access the platform's core AI capabilities during that specific timeframe. Based on the provided coverage, the current state of the services is that they have been restored. There is no further information regarding the specific cause of the infrastructure failure or whether Anthropic will implement new safeguards to prevent a recurrence. Observers will likely monitor for official post-mortem reports from Anthropic to understand why the authentication services failed and how the 35-minute global outage occurred across multiple service lines.
Synthesized by PULSE from the headlines below under a strict no-invention contract. ✓ fact-checked: unsupported claims removed (93% supported) Updated 89d ago.
Quick answers
What specific services were affected by the outage?
The outage affected multiple services, including general login capabilities and Claude Code.
What error message did users see?
Users reported seeing an 'authentication service unavailable' error.
How long did the outage last?
According to JournalArta, the global infrastructure outage lasted for 35 minutes.
Coverage (8)
- Claude has massively stopped working: Anthropic confirmed login and Claude Code outage Курс України · 89d ago
- Claude AI Services Restored Following 35-Minute Global Infrastructure Outage JournalArta · 89d ago
- Claude AI down: Users report ‘authentication service unavailable’ error amid outage Hindustan Times · 89d ago
- Is Claude down? Claude outage impacts thousands. Claude is unavailable error. Asbury Park Press · 89d ago
- Anthropic confirms Claude is down in major outage affecting multiple services BleepingComputer · 89d ago
- Claude says brief service disruption resolved Breakingthenews.net · 89d ago
- Anthropic confirms Claude is down in major outage affecting multiple services BleepingComputer · 89d ago
- Claude says brief service disruption resolved Breakingthenews.net · 89d ago
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