People new to building often ask which coding agent is best. It’s a bit like asking whether phone or email is the best sales channel. They overlap a lot, each has a natural fit, and the one you use well beats the one you use occasionally.
Here’s a practical way to think about the three tools we teach. One caveat first: these products change fast. Features, pricing, and the models underneath shift every few months, so treat this as a description of how each one tends to fit, not a spec sheet. Check each tool’s current docs before you commit.
Cursor: an editor with an agent built in
Cursor is a code editor, built on the same foundation as VS Code, with AI woven through it. Your files sit in a sidebar, open in tabs, and an agent in a side panel can read and edit the whole project.
Where it tends to fit well:
- Seeing what changed. Edits show up as diffs right in the editor, and you can accept or reject them file by file. For a non-engineer, seeing the change next to the code is a big deal.
- Small, targeted edits. Highlight a block and ask for a change to just that part.
- Choosing models. Cursor lets you pick from several AI models, including ones from Anthropic and OpenAI, inside the same editor.
If you’ve never opened a code editor, Cursor is often the gentlest on-ramp, because everything is visible in one window.
Claude: a thinking partner and a terminal agent
“Claude” covers two different things worth separating. There’s the Claude chat app, and there’s Claude Code, Anthropic’s coding agent that runs in your terminal and also plugs into editors like VS Code and Cursor.
The chat app is useful before and around the build: shaping your PRD, explaining an error message in plain English, thinking through how your data should be structured, drafting outreach copy. You don’t need a codebase open to get value from it.
Claude Code fits when a task touches several files or needs the agent to run commands, read the output, and keep going. You describe the goal; it explores the project, makes changes, and can run your tests or dev server. By default it asks before editing files or running commands, which is a good habit to keep while you’re learning. The terminal looks intimidating at first, but you’re mostly typing plain sentences.
Codex: OpenAI’s agent, locally or in the cloud
Codex is OpenAI’s coding agent. It can run locally in your terminal or editor, similar in spirit to Claude Code. It can also take tasks in the cloud: you point it at your GitHub repository, it works in its own sandbox, and you review the result as a set of changes.
Where that tends to fit well:
- Well-defined chores you can describe precisely: “add an empty state to the projects list,” “write tests for the signup form.”
- Working in parallel. Kick off a small task, go run your research block, and review the result later.
- Second opinions. Asking a different agent to review a change can catch things the first one missed.
A simple way to split the work
You don’t need all three. Many people pick one and only add a second when they hit a limit. If you want a starting point, this split works for a lot of beginners:
- Use a chat app such as Claude or ChatGPT to think: the PRD, the data model, error explanations.
- Use one agent inside your project for building. Cursor if you want everything visible in an editor; Claude Code or Codex if you’re comfortable in a terminal.
- Occasionally use a second agent to review a change before you commit it.
Questions to ask when you choose
- Do I want to see every change in an editor, or am I fine reviewing in a terminal or on GitHub?
- Am I mostly making small edits, or larger changes across many files?
- What’s my monthly budget for tools? Check current pricing, since usage-based costs add up.
- Which one do I actually open and use without friction?
That last question is the one that matters most. A tool you reach for every build block will teach you more in a month than a slightly better one you avoid because it feels unfamiliar.
The 30-Day Build & Launch Sprint teaches workflows for all three, so you can pick based on how you like to work rather than on someone else’s preference.