Claude is down as Anthropic investigates errors across its services

Anthropic is experiencing high error rates with Claude.ai, Claude Code, Claude Cowork, and the Claude API, and users have reported failed requests as well as difficulties loading their conversations.

Claude is currently unavailable to some users as Anthropic investigates high error rates across several of its services.

The company published on its status page that the problem is affecting Claude.ai, including its desktop and mobile apps, as well as Claude Code and Claude Cowork. Some requests to the Claude API are also returning errors.

Users might encounter failed requests, errors when loading or sending conversations, or prompts to sign in again. Anthropic states that retrying a request may succeed.

The incident was initially listed as “Investigating” at 14:21 UTC, and seven minutes later, at 14:28 UTC, Anthropic updated the status page to confirm that the Claude API was also affected.

The company has not yet stated the reason for the disruption or when normal service will be resumed.

This outage occurred less than a week after a previous incident involving Claude. On September 22, Anthropic reported a rise in errors affecting several of its Claude models, including Opus 5, Mythos 5.1, and Fable 5.1.

The earlier incident was resolved after about one hour and thirty-eight minutes, according to a third-party archive of Anthropic’s status data.

The effect of this week’s incident extends to a larger part of Anthropic’s product range.

Claude.ai is the company’s primary consumer-facing interface, while Claude Code and Cowork are increasingly used for development and business purposes. Also, an interruption to the API can affect third-party products built on Claude.

At the moment, Anthropic is still looking into the matter and has not given any further explanation.