🧭 January 2026 Safety Summary — Red-Teaming Activities and RSP Status

Anthropic has published its first monthly safety summary for 2026, covering red-teaming activities, Responsible Scaling Policy (RSP) evaluation status, and safety research highlights from January. The monthly safety summary is a new publication format introduced alongside the Annual Transparency Report — intended to provide more frequent, lighter-weight safety accountability between the annual reports.

January safety highlights

• Red-teaming scope — 1,200 structured red-team hours were conducted in January across CBRN uplift, cybersecurity capability, and social engineering threat categories for the updated Sonnet 4.5 checkpoint; no new ASL-3 threshold concerns were identified
• RSP evaluation status — the most recent formal ARA evaluation, conducted in December 2025, returned results below the ASL-3 trigger threshold; the next scheduled evaluation is planned for Q2 2026 ahead of anticipated model releases
• Safety research highlights — four papers were submitted to peer-reviewed venues in January covering topics in scalable oversight, reward hacking detection, and mechanistic interpretability; preprints are linked in the summary
• External researcher programme — six new researchers were onboarded to the structured model access programme in January; their research areas include adversarial robustness and multi-agent safety

🧭 Claude Cowork Pro — Collaboration Features Coming to Max Teams in February

Anthropic has announced that Claude Cowork Pro — an expanded tier of the Cowork desktop application launched for individual Max subscribers on January 11 — will add team collaboration features when it launches for Max Teams plan customers in February. The announcement previews the collaboration additions coming in the next update and signals a broader push to make Cowork the default Claude experience for professional users working in team contexts.

Features announced for Cowork Pro (February)

• Shared project workspaces — team members on the same Max Teams plan can share Cowork projects, with each member seeing the same Project knowledge base and able to contribute conversations that are visible to the team
• Conversation handoff — a user can hand off a Cowork conversation to a teammate, who picks it up in their own Cowork instance with full context preserved
• Team activity feed — a shared feed showing recent conversations and automation runs across the team's Cowork projects, providing coordination visibility for teams working on related tasks
• Admin controls — workspace administrators can manage project membership, set team-level instruction defaults, and review automation run history across the team

Cowork Pro for Max Teams is targeted for launch in the second week of February 2026. Individual Max subscribers will continue using the current Cowork version with no changes required.