Singularity vs Zed: fast editor or AI agent board?

Zed appeals to developers who want a very responsive, open source editor that can host AI agents without forcing them on you. Written in Rust by Zed Industries and released as 1.0 in spring 2026, it offers an agent panel, parallel threads, real-time collaborative editing and the Agent Client Protocol for plugging in Claude, Codex, Gemini CLI and other external agents.

Singularity starts from the opposite end: a desktop Agentic Development Environment (ADE) built around a Kanban board. Each ticket becomes a mission handed to an agent, run in an isolated Git worktree, then reviewed and integrated by rebase. So the real question is not “which editor is better?” but “where do you steer agents from: the editor, one conversation at a time, or a board that tracks every task through to integration?”

Comparison checked on 10 October 2026 against Zed’s official documentation and Singularity’s own. It compares workflows; it does not benchmark speed or the quality of generated code. Public prices in USD (Zed) and EUR (Singularity) as displayed, excluding tax and usage; they may change.

Scope: this article compares the Zed editor. Delta is a distinct product from the same team: see the Delta note in the hub, sourced and dated October 11, 2026.

In short

• Zed is an editor first: GPU rendering, multiplayer editing, built-in Git, SSH remote development. Agents live in a panel and a threads sidebar.
• Singularity is an agent control room first: tickets, dependencies, one worktree per run, file-by-file review and an integration queue.
• Different economics: Zed is free, with a $10/month Pro plan that includes token credit; Singularity is free and only charges for paid plugins (€24/month per workstation).
• They combine well: a worktree created by Singularity is an ordinary Git folder Zed opens without fuss.

Zed at a glance

Zed is made by Zed Industries, an investor-backed company, and sums itself up on its homepage as “The world’s fastest IDE. Open source. AI optional.” In “Zed is 1.0” (29 April 2026), Nathan Sobo explains that the team left Atom’s web-based approach behind to build GPUI, its own GPU-rendered UI framework in Rust. The source is primarily GPL-3.0-or-later, with Apache-2.0 components, and the editor runs on macOS, Linux and Windows.

AI goes through the Agent Panel. Each thread is an independent conversation with its own agent, context and history. The built-in agent searches code, edits files and runs commands; you accept or reject each change hunk, and “Restore Checkpoint” rolls the code back. Since April 2026, Parallel Agents groups threads by project in a sidebar, each with the agent of your choice. According to the docs, a thread can start in a new Git worktree created in detached HEAD; you then review the diff and merge “through your normal Git workflow”. There is no task board.

External Agents connect through the Agent Client Protocol (ACP): Claude Agent, Codex, OpenCode, Copilot, Cursor, Gemini CLI and more, per the ACP Registry. Zed does not charge for them; billing is between you and the agent provider. Terminal Threads also run an agent’s native CLI in a terminal managed as a thread. For its own agent, Zed accepts Zed-hosted models, API keys, gateways such as OpenRouter or Bedrock, an existing subscription or a local model through Ollama, LM Studio or llama.cpp. Predictive completion, Edit Prediction, defaults to Zeta, an open source model developed by Zed.

Zed is also a team editor: real-time multiplayer editing and channels with voice chat, a Git panel with hunk staging, stash, worktrees and conflict resolution, and SSH remote development where code, language servers and terminal run on the remote machine.

Singularity in a nutshell

Singularity is a desktop ADE made by Meteor Factory: a CodeMirror 6 editor, real system terminals, a Git client (graph, diffs, stash, worktrees), language servers and multi-project workspaces. Its core, Mission Control, is a Kanban board that acts as the execution surface for agents. A ticket carries the request, priority and agent configuration, shows live status and activity, then keeps the report, blockers and a short resolution. Tickets can depend on each other and split into children.

Orchestration runs each attempt in a dedicated Git worktree, then replays its commits onto the base branch with a rebase; a queue orders integrations for the same project. Depending on your settings, the result is integrated automatically or waits in the Review tab. Tests and review remain essential: isolation removes neither conflicts nor regressions. Singularity drives the CLIs of seven providers (Claude Code, Codex, Copilot, Cursor, Gemini, Mistral, Ollama) with your own accounts. The app is free; the Singularity Licence (€24/month per workstation, 14-day trial) only unlocks paid Marketplace plugins. See pricing.

Comparison table

The same feature in both tools

Take a CSV export for invoices, with an API endpoint and a button in the UI.

In Zed, you start a thread with the built-in agent or Claude Agent, then a second thread in a new worktree so the two agents do not edit the same files. While they work, you stay in a very capable editor: reading, fixing by hand, following the project diff. At the end you accept or reject hunks, create a branch in the worktree, commit and merge with your Git commands. The “API first” ordering lives in your head or your issue tracker.

In Singularity, you create two tickets, the button blocked by the endpoint. The API ticket runs in its own worktree with the model you picked; the UI ticket waits until the first one is integrated. If the agent asks a question, the ticket goes to pending and you answer in its thread. The Review tab then shows the diff: per-file approval, a note on a selection, rerun with feedback, or merge by rebase in queue order. Either way, run the tests after integration.

Parallelism, review and integration

In Zed the unit of work is a thread: a conversation you start, watch and archive. The worktree is optional; archiving the thread saves its Git state and removes it from disk, and reopening the thread restores it. That is flexible for someone who keeps a hand on every conversation, and the Git client (inline blame, stash, conflicts, generated commit messages) helps finish the job. But integrating an agent worktree stays a manual operation.

In Singularity the unit is a ticket: acceptance criteria, priority, dependencies, assigned agent. The scheduler can pick the next ready ticket within the concurrent-agent limit. The agent talks to the app through an MCP gateway scoped to its session, to ask a question or create a follow-up ticket. Its commits are replayed by rebase onto the up-to-date base, and nothing reaches your branch without approval when automatic merge is off. Beyond three or four simultaneous tasks, a board makes “pending”, “failed” or “user action” states visible.

Models, costs and data

Zed can sell model access: Pro includes $5 of tokens per month, then bills at API price plus 10%, according to its pricing page, which also states that usage with your own keys or external agents is unlimited, even on the free plan. Per its privacy page, Zed does not retain prompts or code context by default.

Singularity sells no model: it starts your providers’ CLIs, which use your own accounts or keys. App data stays in a local SQLite database; only the configured CLIs talk to their services, and with local Ollama, inference stays on your machine.

Where Zed is stronger

• The editor: Zed is mature and feature-rich; Singularity’s editor has no multiple cursors, split editor, minimap or inline blame.
• Real-time collaboration: multiplayer editing and voice channels have no equivalent in Singularity.
• Remote development over SSH, with a local UI.
• Open source: Zed is GPL; Singularity is proprietary.
• Agent and model choice: the ACP Registry, local models, gateways, and predictive completion that Singularity does not offer.

Where Singularity stands out

• The ticket as the unit of work: spec, dependencies, children, status and report in one place.
• One worktree per run by default: agents never touch your uncommitted files.
• Structured review before merge: per-file approval, notes, partial merge, rerun with feedback.
• Ordered integration: rebase onto the up-to-date base and a per-project queue.
• No token resale: AI costs go straight to your providers.

Can you use both?

Yes. Singularity creates its worktrees under .singularity-worktrees/: they are ordinary Git folders. Open the repository or an agent worktree in Zed to read, fix or debug, while Singularity tracks tickets and integration. Claude Code, Codex, Copilot, Cursor and Gemini work on both sides with your accounts; just avoid two agents in the same worktree at the same time. If you are also weighing a more traditional editor, read Singularity vs VS Code.

Which tool should you choose?

• You live in the editor and use AI occasionally: Zed.
• You pair-program or work remotely: Zed, for multiplayer and SSH.
• You delegate several tasks a day and want to follow each through to integration: Singularity.
• Small team or busy solo project: Singularity for the board and review, Zed as the editor on the same repositories.

Trial protocol

1. Pick a real feature touching API and UI, with existing tests.
2. Use the same agent on both sides (Claude Code or Codex, for example) to compare workflows, not models.
3. In Zed, run two threads, one in a worktree, then review and merge yourself.
4. In Singularity, create two tickets linked by a dependency, with automatic merge off, and go through the Review tab.
5. Compare review time, manual interventions and Git history readability, then run the full test suite.

Frequently asked questions

Is Zed free?

Yes: the Personal plan is free with 2,000 accepted edit predictions, and usage with your own API keys or external agents is not capped. Pro costs $10/month and Business $30 per seat per month, according to Zed’s pricing page on 10 October 2026.

Can Zed run several agents at once?

Yes, through Parallel Agents, with optional worktree isolation. It offers no task board or automatic integration.

Does Singularity use ACP?

No. For each ticket it directly starts the Claude Code, Codex, Copilot, Cursor, Gemini, Mistral or Ollama CLI installed on your machine.

Do Zed extensions work in Singularity?

No. Singularity has its own Marketplace, compatible with neither Zed nor VS Code extensions.

To go further, browse all Singularity comparisons, including Singularity vs Cursor, read the getting started guide or download Singularity.