Anthropic's next-gen Claude models leak across Vertex AI and web UI
Anthropic just had its upcoming AI lineup exposed on multiple fronts. Developers spotted a claude-opus-4.8 identifier inside Google Vertex AI, while the safety-focused Mythos 1 briefly surfaced in Claude's web interface alongside references to Claude Security. With leaked source code also showing Sonnet skipping 4.7 straight to 4.8, a major model refresh is clearly imminent.