atrium vs Warp
Warp turned a great terminal into an agentic development environment with its own agent, sold by the credit. atrium hosts the agent CLIs you already pay for — ten of them — inside a tiling workspace that resumes after a crash and keeps working with the window closed.
atrium is the workspace around every coding agent you run. Each task launches into its own worktree-isolated room — terminal, agent chat, Monaco editor, browser, tasks, notes — journaled to disk and restored after a quit, crash, or reboot, with a background daemon that keeps agents running when the window is closed. It never proxies your agents' traffic and never meters them.
Warp is a GPU-accelerated, Rust-based terminal that has grown into an agentic development environment: its own multi-model agent, a native code editor with LSP, a code review panel, codebase indexing, project rules, MCP support, Warp Drive, and cloud agents that fire off webhooks, CI events, or Slack. The client was open-sourced under AGPL-3.0 in April 2026; the Oz cloud orchestration layer stays proprietary.
| Feature | atrium | Warp |
|---|---|---|
| The agent | ||
| Whose agent runs | Yours — 10 CLI adapters incl. Claude Code, Codex, Cursor Agent, Grok, opencode, pi | Warp's own agent, multi-model (OpenAI, Anthropic, z.ai …) |
| How agent usage is billed | Not billed — you use the subscriptions you already have | Credits: 1,500/mo on Build ($20), 18,000 on Max ($200) |
| Works with your Claude Code / Codex subscription | Yes — the vendor's real CLI, over PTY or its own protocol | Free plan is bring-your-own inference; agent is Warp's |
| Open adapter SDK (bring your own CLI) | Yes — MIT-licensed declarative manifest | MCP servers extend the Warp agent |
| Cloud agents triggered by webhook / CI / Slack | — | Yes — cloud agents run with nobody at the keyboard |
| Agent-to-agent messaging & coordination | Agents read each other's panes and message in-workspace | — |
| Parallel work | ||
| Parallel agents | One room per task, launched into its own worktree | Multiple agent conversations across windows, tabs, panes |
| Git worktree isolation | Created for you at launch — one per task | Detects worktrees you create, then indexes each separately |
| Task cards that launch agents | Yes — fire into a fresh worktree, on demand or on a cron | — |
| The workspace | ||
| Terminal | Full PTY panes with persisted scrollback | Best-in-class — blocks, workflows, Warp Drive, Active AI |
| Code editor with LSP | Monaco — LSP, git blame, diagnostics | Native editor — LSP, Vim keybindings, file tree |
| Diff & code review | Monaco side-by-side diffs at thousands of files, comment threads agents act on | Dedicated Code Review panel for reviewing and editing diffs |
| Real browser pane | Yes — Chromium pane with DevTools, agent-drivable | — |
| Notes — Markdown, Excalidraw, Canvas, HTML | Yes — a notepad with four note types | Warp Drive — shared notebooks, workflows, and prompts |
| Voice dictation | Yes — push-to-talk, native macOS speech-to-text | — |
| Layout | Tiling mosaic — rooms, splits, parallel wings, docked panes | Terminal windows, tabs, and split panes |
| Memory & recovery | ||
| What survives a restart | Layout, panes, scrollback, working dirs, env, agent sessions | Conversations, restorable from session history |
| Crash recovery with a restore chooser | Yes — pick which rooms and panes come back | Not a stated feature |
| Agents keep running with the window closed | Yes — background daemon | Cloud agents run without the client open |
| Cross-session timeline & full-text search | Timeline, Vault search, Observatory map | Conversation history, optionally cloud-synced |
| Foundation | ||
| Platform | macOS (Windows / Linux on roadmap) | macOS, Linux, Windows |
| Source availability | Closed source; adapter SDK is MIT | Client open-sourced under AGPL-3.0; Oz cloud proprietary |
| Team management (SSO, admin controls, seats) | — | Business and Enterprise plans with SAML SSO and audit |
| Price | Free in early access — bring your own agent subscription | Free tier; Build $20/mo, Max $200/mo, Business $50/user/mo |
Comparison reflects publicly documented features as of August 2026. Warp's feature set may have changed since — check their site and tell us if a row is out of date.
Warp's agent is metered: $20/month buys 1,500 credits, and heavy days cost more. If you already pay for Claude Code or a Codex plan, you'd be paying twice. atrium hosts those CLIs directly, on the subscription you already bought, and takes no cut — it never proxies a single request.
Warp gives you Warp's agent with a model picker. atrium runs the real vendor CLIs — Claude Code, Codex, Cursor Agent, Grok, opencode, Antigravity, Kimi, Hermes, omp, pi — each with its own hooks, session resume, and capabilities, plus an MIT adapter SDK for the one that isn't in the list yet. Your agent choice isn't a model dropdown inside someone else's harness.
Warp is worktree-aware: create one and it will index and review it separately. atrium creates the worktree as part of launching the task, so "run four agents on four branches" is one action instead of four setup steps — and each one lands in its own room with a terminal, an editor, and a browser already in it.
Warp restores conversations. atrium restores the room: pane layout, terminal scrollback, working directories, environment, and the live agent session behind each pane — after a quit, a crash, or a reboot, with a chooser for which rooms return.
Everything above ships in the same app — these come with it.
Approval cards, streaming diffs, subagent drill-in, plan mode, steering mid-turn — rendered from each tool's own protocol.
Every running agent across the workspace, with live status and one-tap messaging.
Reusable runbooks and pre-configured agents, launched with +skill and ++agent mentions — across any adapter.
Comment on a live page like a design review, then send the thread straight to the agent that built it.
Cron and loop schedules with an overlap gate, a stall watchdog, and recovery of interrupted runs.
A navigable 3D night-sky map of every workspace you've ever opened — galaxies, stars, supernovae.
WYSIWYG markdown with comment threads anchored to the text, plus a source toggle and book view.
Dracula, Nord, Catppuccin, Tokyo Night, Gruvbox, and more — or drop in your own JSON theme.
Warp is on macOS, Linux, and Windows; atrium is macOS-only. Warp's terminal is genuinely better than atrium's — blocks, workflows, Warp Drive, and years of polish are hard to match, and its client is open source under AGPL-3.0. Its cloud agents fire on webhooks, CI events, and Slack messages with nobody at the keyboard, which atrium has no answer for. And if you don't already pay for a coding agent, one $20 subscription that includes frontier models is simpler than assembling your own. Warp is selling you an agent inside a great terminal; atrium is selling you a room for the agents you already have.
For agentic development, yes. Both give you an agent, a code editor with LSP, diff review, and terminals in one desktop app. The split is who provides the agent: Warp's is built in and billed by credits, while atrium hosts the CLI agents you already subscribe to — ten of them — and never meters or proxies them. Warp is also cross-platform; atrium is macOS-only today.
No. atrium is free during early access and has no credit system. Your agents authenticate with their own accounts and talk directly to their own providers, so there's no second meter and no traffic through atrium's servers.
It runs the real thing. Every agent in atrium is the vendor's actual CLI — as a PTY in a terminal pane, or over the tool's own protocol in a chat pane, with approval cards, streaming diffs, subagent drill-in, plan mode, and steering. Nothing is reimplemented and nothing is scraped.
No. Warp's cloud agents, triggered by webhooks, CI events, or Slack, are a genuine gap. atrium's closest equivalent is local: a background daemon that keeps agents running with the window closed, and task cards that can fire on a cron schedule or loop until the work is done.
No — and we'd rather say so. Warp is a purpose-built terminal with blocks, workflows, and Warp Drive; atrium's terminal panes are solid PTYs with persisted scrollback, links, and search. atrium's advantage isn't the terminal, it's everything tiled around it.
No. Warp is a terminal emulator, and plenty of people will keep using it as their shell. atrium is the workspace agents live in — point it at the same repos and nothing about your git workflow changes.
Free during early access. Bring the agents you already pay for — your code never leaves your machine.
Download atrium for macOS