Opus 4.5
AssessTools
A named Claude model variant referenced as part of the coding-assistant workflow.
Why it's here
Placed in Assess: 2 article(s) of evidence from 2 source(s), led by product launches, with 1 in the last 30 days. Confidence 46%.
Evidence (2)
- 3Simon Willison·5/30/2026open_sourceOpen Source Leader Leaves Tech for an Offline Life
Chad Whitacre says he is stepping away from tech and open source, citing AI and the pressures of modern digital life as key reasons. Simon Willison notes that Whitacre’s earlier experience with agentic coding tools appeared to reinforce his decision, and says he will be missed in the open source community.
- 7VentureBeat AI·1/12/2026product_launchAnthropic launches Cowork, a Claude Desktop agent for files
Anthropic has introduced Cowork, a new Claude Desktop agent that can read, edit, and create files inside a user-selected folder on macOS without coding. The feature is in research preview for Claude Max subscribers and expands Anthropic's agent offering beyond developer-focused Claude Code into mainstream productivity tasks.