OpenAI's ChatGPT Work, available to $20/month subscribers, is a powerful agentic platform split into "Work Cloud" (web/mobile) and "Work Local" (desktop app). Unlike standard ChatGPT, Work provides a sophisticated execution environment featuring a code execution engine with unrestricted internet access, allowing users to clone GitHub repositories and install dependencies via PYPI or NPM. It includes a headless Chrome browser capable of executing JavaScript against the DOM and handling manual 2FA/password entries. A key technical advancement is the persistent, shared filesystem where sessions utilize a `/workspace/scratch/` directory that remains accessible across different chats. Furthermore, users can deploy "ChatGPT Sites" via Cloudflare Workers, utilizing Cloudflare D1 and R2 for stateful backend features. The platform offers advanced model selection, including GPT-5.6 and specialized reasoning models like Sol, Luna, and Terra, with various levels ranging from Light to Ultra. It also supports sub-agent sessions for parallel task execution and scheduled prompt automations. The system utilizes a wide array of "skills," including specialized tools for manipulating spreadsheets, generating images, building dashboards, and rendering PDFs.