Anthropic to restoring access to Claude Fable 5 and Mythos 5 from tomorrow

- Anthropic is the US-based AI company behind the Claude family of large language models. - Claude Fable 5 and Mythos 5 are reportedly model variants or internal code names that were temporarily taken offline (the tweet uses "restoring access," implying a prior suspension). - The tweet appears to be a spoof or hoax — the account handle is @AnthropicAI but Twitter/𝕏 has no verified checkmark visible, and the post uses non-standard phrasing ("to restoring"). No official announcement from Anthropic matches this content. - As of mid-2025, Anthropic has publicly released Claude 3.5 models; no "Fable 5" or "Mythos 5" versions exist in official documentation.