Zed is the fastest editor. Aura is the slowest thing to lie to you.
Zed is a Rust editor built for speed, with real-time collaboration and an agent panel that speaks to whichever model you point it at. Aura is written in Rust too, and cares about a different kind of performance: how quickly you can tell whether an agent’s change was correct.
What each one is for
What Zed is great at
- Speed
Genuinely the fastest editor most people have used, and it does not degrade as the file gets big.
- Collaboration
Multiplayer editing that works, built in rather than bolted on.
- Open source
GPL-licensed, readable, and the team ships in public.
- Agent panel
Bring your own model, including local ones, without leaving the editor.
What Aura adds on top
- A read of the change, not the file
Zed shows you code. Aura shows you what an agent did to it — which functions changed, what depends on them, and what it now means.
- Proof and provenance
A goal per task, a verdict per commit, and a signed record you can hand to someone.
- Multi-agent orchestration
Worktree per agent, dependency-ordered tasks, and a collision radar across humans and agents.
- An editor extension
Aura’s semantic layer is reachable from the editor you already use.
Dimension by dimension
Side by side
When to pick which
Pick Zed if…
- You want the fastest editor available and multiplayer in the buffer.
Pick Aura if…
- You want to keep Zed and add a layer that reads and proves agent changes.
Keep Zed. Add the control layer.
Edit in Zed, review and prove in Aura. They do not overlap enough to compete — Aura ships an editor extension precisely so you do not have to leave.
Aura & Zed
Does Aura work with Zed?
Yes. Aura tracks the repository, so any editor works, and the CLI plus MCP server are reachable from Zed’s agent panel.
Is Aura an editor?
No. It reads files and shows diffs, but writing code is your editor’s job.
Ship with proof, not hope
Free public beta for macOS and Linux. Point it at a repo and keep driving Zed, now with a semantic diff, a verdict and a record on every change.