NEW Claude Operon is INSANE!

Claude Operon is a new specialized mode discovered inside the Claude desktop app on March 27-28, 2026 by Testing Catalog, a team that tracks unreleased AI features. Unlike regular Claude chat, Operon provides a dedicated workspace for scientific research with its own interface and session management system. The onboarding screen suggests four main use cases: building phylogenetic trees, designing CRISPR knockout screens, analyzing single cell RNA sequencing data, and ranking enzyme variants using protein language models. The discovery reveals Operon as the fourth major Claude mode alongside chat, code, and co-work, specifically targeting scientists, biologists, and healthcare researchers. The name 'operon' references a biological concept where genes are controlled together as a unit, signaling Anthropic's deep understanding of the scientific domain. This release follows a deliberate 12-month strategy beginning with Anthropic's AI for Science program in mid-2025, followed by Claude for Life Sciences in October 2025, Claude for Healthcare in January 2026, and the launch of a dedicated science blog in March 2026. Another mode called 'epitaxi' (referencing semiconductor science) was also discovered, suggesting Anthropic plans multiple domain-specific scientific workspaces. The session management system allows researchers to create projects with consistent system prompts across all conversations, enabling deep, contextual work without constant re-explanation. This represents a major strategic shift from horizontal (general-purpose) to vertical (specialized) AI tools, positioning Anthropic to build an ecosystem of specialized AI assistants rather than just a single chatbot.