IDE4. Download for Windows

WRITING

Notes on working with agents.

Practical writing about AI coding workflows — what these tools actually cost, how to divide work between several agents, and where the honest limits are.

COMPARISON

IDE4 vs Cursor vs GitHub Copilot

Cursor and Copilot meter model usage on top of a subscription. IDE4 runs on the plan you already pay for. Every figure quoted from the vendors' own pricing pages — including where IDE4 is the wrong choice.

9 September 2026 · 8 min
COST & SETUP

Bring your own subscription

Codex is included with ChatGPT plans and Claude Code runs on a Claude subscription. What that means for the real cost of AI coding, when an API key is still the better choice, and what a subscription does not get you.

9 September 2026 · 7 min
WORKFLOW

Running agents in parallel without losing the thread

Two agents are not twice as fast — they are twice as much to track. How to split by seam rather than by size, agree interfaces up front, and recognise when sequential is simply better.

9 September 2026 · 6 min

See the workspace itself.

The web demo runs the real IDE4 interface with an example project — no download required.

Open the demo