Anthropic Outage History

The incident began around 3:34 PM UTC with elevated errors when uploading files to claude.ai. The status was updated to warn at 3:38 PM UTC. The issue then affected Claude API (api.anthropic.com) and the Claude 4.5 Haiku endpoints on platform.claude.com (Anthropic Console), with a second update at 4:18 PM UTC as investigations expanded. In total, the provider issued 3 status updates across the affected components. The outage lasted about 1 hour and 44 minutes and was resolved by 5:18 PM UTC.

Anthropic Claude 4.5 Sonnet experienced elevated errors affecting three components: Claude API (api.anthropic.com), claude.ai, and platform.claude.com. Users attempting to use Claude 4.5 Sonnet endpoints reported errors and degraded performance, with API requests failing and AI responses taking longer or not returning.

On Oct 23, 2025 4:59 PM UTC, Anthropic flagged an investigation into a file upload issue on /new that affected Claude AI. The Claude.ai component moved to a degraded state at Oct 23, 2025 5:03 PM UTC. The service was restored by Oct 23, 2025 6:13 PM UTC, for a total duration of about 1 hour 10 minutes.

The incident involved two official status updates from the Claude AI component as the team investigated and then resolved the issue. The impact was limited to the file upload capability within Claude AI, with users potentially experiencing failures when uploading files to the /new path.

An outage affected Anthropic Claude, impacting the Claude.ai website and related apps globally. Users reported website not loading, rate-limiting errors, and chat/app access failures across Europe, the Americas, Asia, Africa and beyond. The disruption began at 8:20 AM UTC and was resolved by 8:55 AM UTC. StatusGator issued an Early Warning Signal at the start of the incident.

On Oct 22, 2025 8:25 PM UTC, Claude.ai connectors began experiencing elevated errors as Anthropic began investigating. The status page then listed the issue as degraded at Oct 22, 2025 8:28 PM UTC and noted ongoing investigation. The outage lasted about 2 hours and 23 minutes, with restoration confirmed by Oct 22, 2025 10:48 PM UTC. The incident included two official status updates during its course.

Users relying on Claude.ai integrations may have encountered failed or delayed connector executions and related errors until restoration. Claude.ai components returned to normal after the final update.

Anthropic Claude Opus 4.1 experienced a brief degraded period with elevated errors across multiple components, including Claude API (api.anthropic.com), Claude Code, claude.ai, and platform.claude.com. The incident impacted users attempting to access Claude features or integrate with the API, causing errors and intermittent interruptions. The outage began at 7:33 AM UTC and was resolved by 9:38 AM UTC, lasting about 2 hours and 5 minutes. A user report around 9:00 AM UTC from Velká Polom, Czechia indicated the issues.

The provider issued two status updates during the incident as investigators worked to restore services, and all affected components returned to normal by 9:38 AM UTC.

Anthropic Claude AI experienced degraded performance in its Research function, with elevated errors reported on claude.ai. The incident began at Oct 22, 2025 12:18 AM UTC and was identified with a fix being implemented at Oct 22, 2025 12:16 AM UTC, affecting the claude.ai Research component. The outage lasted approximately 1 hour and 55 minutes and was resolved by Oct 22, 2025 2:13 AM UTC. The provider issued 2 status updates during the incident, confirming the issue and subsequent restoration of services.

Anthropic Claude Opus 4.1 experienced elevated errors across multiple components, including the Claude API (api.anthropic.com), platform.claude.com, Claude Code, and claude.ai. The incident began at 12:59 PM UTC and was resolved by 1:23 PM UTC, lasting roughly 24 minutes. Users attempting Claude-related requests would have encountered errors or degraded performance during this window; the status page later showed all components returning to normal with the 13:23 UTC update.

Anthropic Claude.ai experienced a brief outage between Oct 20, 2025 6:08 PM UTC and Oct 20, 2025 6:13 PM UTC, during which Claude.ai was unavailable for about five minutes. The Claude.ai component briefly transitioned from up to down and back to up, as Anthropic documented the incident with an initial Investigating update and a follow-up restoration update. The incident involved the Claude.ai component and was addressed with two official status updates during the event.

The outage began on 3:48 PM UTC and was resolved by 4:13 PM UTC, lasting approximately 25 minutes. The disruption affected Claude Desktop users and caused the Claude.ai component to be briefly degraded. Users attempting to use Claude Desktop may have experienced interruptions during this window.

Anthropic posted two status updates documenting the investigation and resolution. The incident appears localized to Claude Desktop users, with limited user reports and no clear indication of a broader platform outage.