{
  "id": 12261385,
  "title": "Quoting Felix Rieseberg",
  "url": "https://urgent.news/2026/10/05/quoting-felix-rieseberg",
  "topic": "ai",
  "section": "AI",
  "published": "2026-10-05T23:56:47.000Z",
  "source": {
    "name": "Simon Willison",
    "slug": "simon-willison",
    "url": "https://simonwillison.net/2026/Oct/5/felix-rieseberg/"
  },
  "original_language": "en",
  "account": "Felix Rieseberg, a representative of Anthropic, spoke about the recent update to Cowork. The revised version of Cowork now conducts model inference and runs the VM in the cloud, addressing several issues that users had encountered. These issues included the inconvenience of running the VM locally, such as the consumption of disk space, battery life, and performance. Additionally, users found it problematic that their work would halt when they closed their laptops.\n\nThe new version of Cowork resolves these issues by ensuring that each session operates in its own sandbox, thereby preventing state sharing among different sessions. The desktop app is responsible for any file access that the VM might need, which includes operations like accessing files on the user's device. This change allows users to use Cowork from various devices, such as a phone, continue their work uninterrupted, and enjoy the same level of power without sacrificing battery life.",
  "summary": "The \"old\" version of Cowork runs model inference in the cloud, executing tool calls in an Anthropic-provided VM we shipped to your computer. We added the VM for capability, safety, and security reasons - mapping in just the data you explicitly added to your session. People loved what they were able to do with Claude but didn't love the disk, battery, and performance cost of running the VM…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}