Leon vs Superset.
Checked 2026-10-07. Sources below.
Superset site: superset.sh
Superset is an agentic IDE that orchestrates 100+ agents with a desktop app, CLI, SDK, MCP server and Slack bot, source-available under Elastic License 2.0. Leon is a native Rust workspace, a 23 to 27 MB download, Apache-2.0, on macOS, Linux and Windows. Choose Superset if you build on the SDK or live in Slack. Choose Leon if you want OSI-approved open source and a small, fast workspace.
The table.
Leon: Rust, GPU-rendered UI, 23 to 27 MB download, macOS, Linux, Windows, Apache-2.0, open source.
| LEON | SUPERSET | |
|---|---|---|
| What it is | Native workspace for running coding agents in parallel. Rust, GPU-rendered, a 23 to 27 MB download. | Agentic IDE to orchestrate 100+ coding agents in parallel, with desktop app, CLI, SDK and MCP server. Source-available under Elastic License 2.0. |
| Agent support | 43 built-in terminal agents plus custom agents. History search for Claude Code, Codex and opencode. | Any CLI agent, plus Superset Chat and MCP tools. Bring your own subscriptions on every plan, as listed (as of Oct 2026). |
| Isolation | One tree for every session: projects, worktrees and machines side by side. Resume, no dupes, history, lights. | One isolated workspace per task with its own git worktree, branch, terminals, ports and review flow. |
| Terminals | Real terminals, split your way, with buffer and live output. | Terminals with diff and file editor, chat panel and in-app browser for docs and dev servers. |
| Review flow | Review loop is planned, not shipped. Today you review in the terminal and with git, as usual. | Built-in diff and file editor, port management, review inside Superset or jump to VS Code, Cursor, Windsurf, JetBrains or Xcode. |
| Remote | Add a server over SSH, or share a machine with a ten-symbol code. Relay at relay.getleon.dev is online. End-to-end encrypted. | Remote access and automations on Pro. Phone needs iOS 26+, Pro and a host that stays online. Android is a waitlist (as of Oct 2026). |
| Speed and footprint | 1-2 ms history search over about 14,700 messages; about 5 ms re-import with nothing new; about 6 s test suite. Measured on one M1 Pro. Your machine will differ. The download is 23 to 27 MB as of 0.9.0. | Not listed on their pricing or compare pages (as of Oct 2026). Desktop plus SDK surface implies a larger install than Leon. |
| Platforms | macOS, Linux and Windows. | macOS, plus experimental Linux AppImage. Windows is not yet available, as listed (as of Oct 2026). |
| Licence and price | Apache-2.0, open source. Free. Bring your own agent subscriptions. | Free tier for individuals with local workspaces, desktop app and CLI. Pro $20/user/mo monthly or $15/user/mo yearly. Enterprise custom with SSO, audit logs and SLA (as of Oct 2026). |
Beyond the table.
Where Leon is stronger
- Apache-2.0, OSI-approved open source. Superset is source-available under ELv2.
- Ships Windows alongside macOS and Linux.
- Smaller surface: workspace, terminals, history and remote, with published speed numbers.
Where Superset is stronger
- SDK, TypeScript API, MCP server and Slack bot for teams that automate.
- 100+ parallel agents with ports, chat and browser in one IDE.
- Linear and Slack integrations plus automations on Pro.
Honest limits of Leon here
- No SDK, MCP server or Slack bot. Leon is a workspace, not a platform.
- Automations and orchestration are planned, not shipped.
- No in-app browser or chat panel.
Choose honestly.
[ CHOOSE LEON ]
- Licence matters: you need Apache-2.0 you can fork and self-host freely.
- You are on Windows, or across all three desktop OSes.
- You want the smallest tool that supervises agents well.
[ CHOOSE SUPERSET ]
- You build automations on the SDK or drive agents from Slack.
- You want chat, browser, ports and review in one IDE surface.
- You run 100+ agents and need the orchestration layer today.
Switching takes minutes.
Both tools run the same repos and the same agent CLIs.
- Same git worktrees and branches. Point Leon at the same repos.
- Agent CLIs and subscriptions carry over unchanged.
- Replace SDK calls with terminal and git workflows, or keep Superset for automation and Leon for daily supervision.
Questions.
Is Superset open source?
Source-available under Elastic License 2.0, as listed on GitHub (as of Oct 2026). You can read, fork and self-host it, but not repackage Superset itself as a paid service. Leon is Apache-2.0.
Does Superset run on Windows?
Windows is listed as not yet available (as of Oct 2026). macOS is supported, Linux is experimental. Leon ships all three.
How does pricing compare?
Superset Pro is $20/user/mo monthly or $15/user/mo yearly, plus your agent spend. Leon is free throughout, plus your agent spend (as of Oct 2026).
- superset.sh, homepage
- superset.sh/pricing
- superset.sh/compare/superset-vs-orca
- github.com/superset-sh/superset
Leon facts: the app README, CHANGELOG and brand book, via COPY.md. Leon is independent and unaffiliated with Superset. Third-party names and marks identify compatibility and remain their owners' trademarks.