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Claude is an AI assistant developed by Anthropic that uses large language models to generate text and support conversational tasks.
… A Claude watermark also cannot identify whether the text was written by another AI model, since other providers may use different watermarking methods and different keys. "A watermark can only determine that Claude was likely involved with the content at some point. …
… The incident began on August 16, 2026, at around 21:58 UTC, and is affecting Claude.ai, Claude Code, and Claude Cowork. According to Anthropic’s status page , the company first said it was investigating an issue preventing some users from authenticating to Claude.ai, Claude Code, and Claude Cowork. …