Anthropic shifts Cowork task execution to the cloud, engineer explains why
lydiahallie · x · 2026-10-06
- Cowork previously ran locally: model inference in the cloud, but tool calls executed in an Anthropic-provided VM shipped to the user's machine, mapping in only explicitly added session data for safety and security.
- Product engineer Felix Rieseberg explains tasks will now run in the cloud starting tomorrow, while still accessing local files and tools; affected users received emails and in-app notices.
- He acknowledges the change surprised more users than intended and promises a longer explainer; Lydia Hallie flags the transition for local-machine users.
Related event: Claude Cowork drops local execution, moves tasks fully to the cloud(7 posts)→
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