T3 Code vs Cursor

Cursor is an AI editor you work inside; T3 Code is a workspace you delegate to. Why most developers end up using both, and when each one is the right tool.

Last reviewed 2026-07-27 · verified against the pingdotgg/t3code repo

These get compared constantly and shouldn't be. They're built around opposite assumptions about where you sit.

Cursor assumes you're writing the code, with AI helping — completions as you type, inline edits, an agent you supervise closely, all inside an editor.

T3 Code assumes the agent is writing the code and you're reviewing — a task goes to a thread, the agent works in an isolated worktree, you read the diff.

One is assisted editing. The other is delegation.

Side by side#

Note that Cursor is also a provider for T3 Code, via cursor-agent. These aren't mutually exclusive at any level. Cursor in T3 Code →

When Cursor is the right tool#

• You're writing the code and want completions as you type
• The task needs judgement at every step
• You're exploring unfamiliar code and want to navigate it yourself
• Small, surgical edits where describing the change takes longer than making it
• You want one application for everything

When T3 Code is the right tool#

• The task is well-specified enough to hand over completely
• You want three tasks running in parallel while you do something else
• You want the agent isolated in a worktree, not editing your working tree
• You want to check on a long run from a phone
• You use more than one agent and want them in one interface
• You want it free and open source

The pattern that works#

Most people who use both settle into roughly this:

Cursor for the code you're thinking about. The feature you're designing, the bug you're reasoning through, anything where you want to see and shape each change.

T3 Code for the code you just want done. Test coverage for a module you already understand. Migrating a deprecated API across forty files. A dependency upgrade with the resulting fallout. Tasks that are clear, tedious, and parallelisable.

The dividing line isn't difficulty — it's whether you need to be in the loop. Delegation works when you can specify the outcome and verify it afterwards. It fails when the specification only becomes clear while you're doing the work.

The cost question#

T3 Code is free and MIT licensed, but it isn't free to run — you need a provider subscription behind it. Cursor's subscription bundles the editor and the model access together.

So the comparison isn't free versus paid. It's:

• Cursor — one subscription, one tool, model access included
• T3 Code — free tool, plus whatever you already pay OpenAI, Anthropic or Cursor

If you already pay for Codex or Claude, T3 Code adds nothing to the bill. If you pay for Cursor only, you can run cursor-agent through T3 Code on the same subscription.

Trying it#

npx t3@latest costs an afternoon and no money, and works with the Cursor subscription you already have. The useful test is whether the parallel-agent workflow changes what you're willing to delegate. For some people it changes a lot; for others the answer is that they'd rather stay in the editor. Both are legitimate.

FAQ#

Is T3 Code a Cursor alternative?#

Not directly. Cursor is an AI-powered editor for writing code; T3 Code is a workspace for delegating tasks to coding agents. They solve different problems and many developers use both.

Can I use T3 Code and Cursor together?#

Yes. Cursor's agent CLI is a supported T3 Code provider, so you can drive it from T3 Code on your existing Cursor subscription while still using the Cursor editor for hands-on work.

Which is better for large refactors?#

T3 Code, generally. Worktree isolation lets several agents work in parallel on separate branches, and the diff panel is built around reviewing large changes.

Is T3 Code cheaper than Cursor?#

T3 Code is free, but you still need a provider subscription. If you already pay for Codex, Claude or Cursor, T3 Code adds no cost. Cursor bundles the editor and model access in one subscription.