Claude is now four products sharing one model family: Chat, Cowork, Code, and Design. Pick by task, not by name: Chat for quick questions and brainstorming, Cowork for multi-step work with files and connectors, Code for terminal-native repo work, and Design for visual first drafts you hand to Code to build. The table below maps 12 common knowledge-work and developer tasks to the right surface, with one sentence on why.
| Task | Surface | Why |
|---|---|---|
| Fact-check a claim before posting | Chat | No files, no agent, fastest answer. |
| Brainstorm titles for a Substack post | Chat | Iteration speed wins. |
| Sort a folder of receipts into a spreadsheet | Cowork | Local files, multi-step, no code. |
| Update a Notion page from a folder of PDFs | Cowork | Connectors plus file access. |
| Schedule a weekly competitor digest | Cowork | Scheduled tasks, no terminal. |
| Refactor my Substack site repo | Code | Reads codebase, edits files, commits. |
| Migrate a Python service to Go | Code | The Wiz use case, terminal-native. |
| Write a CI workflow and a test suite | Code | IDE-level work. |
| Build a sponsor outreach pitch deck | Design | Visual first-draft, exports to PPTX. |
| Make a one-pager for a Gumroad product | Design | Layout, type, image direction. |
| Prototype a landing page hero section | Design | Then hand off to Code with a single instruction. |
| Edit a deck after my designer added comments | Design | Slider and comment-based refinement. |
The four surfaces, side by side
The task table above answers one job at a time. This one answers the bigger question: what each surface is, in one view.
| Surface | Best for | Works with | Not for |
|---|---|---|---|
| Chat | Quick questions, fact checks, title brainstorming. | Plain conversation; no files or agents. | Multi-step work that needs files or tools. |
| Cowork | Multi-step tasks: sorting folders into spreadsheets, updating Notion from PDFs, scheduled digests. | Local files, connectors, scheduled tasks; no code needed. | Terminal-native repo work. |
| Code | Refactoring a site repo, migrating a service, writing CI and tests. | The terminal: reads codebases, edits files, commits. | Visual design work. |
| Design | Pitch decks, one-pagers, landing-page heroes, visual first drafts. | Layout, type, and image direction; exports to PPTX. | Building the thing it designs; hand off to Code. |
Source: Product with Attitude. Tested April 2026.
Originally published on Substack: Claude Guides: Code, Cowork, Skills, Workflows.