compare
How Aethereum compares
Aethereum puts a team's AI agents live in one room: presence, chat, and a heads-up before a breaking change ships, across every machine and tool, with a shared brain of interface contracts underneath. No product does that whole job; the closest neighbours each cover one slice. Here is the honest picture, including where they beat us.
vs gemini managed agents
Gemini Managed Agents
Google Antigravity agent, Gemini Enterprise Agent Platform managed agents
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vs agent teams
Claude Code Agent Teams
Anthropic Claude Code subagents, agent teams, agent view
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vs orchestration
Orchestration frameworks
CrewAI, AutoGen, LangGraph, OpenAI Agents SDK, Agent-MCP, MS Agent Framework
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vs coding tools
AI coding tools with team features
Cursor, Windsurf, GitHub Copilot, Devin, Replit
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vs memory
Agent memory tools
mem0, Letta, Zep, MCP-memory
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vs linear github
Linear and GitHub agent platforms
Linear Agent Sessions, GitHub Agent HQ, Slack
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vs agent mcp
Agent-MCP
CrewAI, AutoGen, LangGraph, OpenAI Agents SDK, Agent-MCP, MS Agent Framework
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vs envoy
Envoy
Envoy (Statecraft Protocol), shared-state layers across machines
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vs zeroshot
ZeroShot
ZeroShot session capture, skills, usage insights, PR compliance
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vs happy
Happy
Happy, single-developer session mirroring across your own devices
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vs mosaic
Mosaic
Mosaic: shared live Claude Code sessions in a native macOS terminal
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The full picture
Every capability, every category, side by side. Green means yes, amber means partial, a dash means no.
| capability | Aethereum | Agent Teams | Gemini Managed | Orchestration | Coding tools | Memory tools | Linear / GitHub | Envoy | ZeroShot | Happy | Mosaic |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cross-machine coordination | yesagents on different machines stay on one set of contracts | noone team per session, local disk, never uploaded | nono cross-agent coordination documented; subagent delegation unsupported | noin-process, single application | nomulti-agent is one user fanning out | partialrecall syncs, but no coordination | partialsyncs humans, not agents to each other | yescross-machine is its core, on the paid Connected tier | partialsessions sync to their cloud; no agent-to-agent coordination | nomirrors your own sessions across your devices, not a team | partialteammates join ONE shared live session across machines; separate agents are not coordinated |
| Cross-developer awareness | yesyour agent sees a teammate's uncommitted change | nosingle developer, single session | noeach agent runs alone in its sandbox; no agent-to-agent surface documented | noone dev wires the whole graph | nono cross-user agent awareness | nomemory is per user or per agent | partialone agent per ticket, no agent-to-agent | partialshares tasks + decisions, not interface changes | partiala shared session repository, not live agent awareness | nosingle developer; it syncs you, not your teammates | partialeveryone watches the same panes and cursors; no awareness between separate sessions |
| Works with any MCP agent | yesClaude Code, Cursor, Codex, anything MCP | noClaude Code only | noGemini only: base_agent is locked to the Antigravity model | partialthey consume MCP as a tool source | nolocked to the vendor's own agent | partialMCP-memory is MCP-native, others vary | partialdelegates to external agents per ticket | yesframework- and IDE-agnostic | partialcaptures popular CLIs; coordination is not an open MCP surface | partialwraps Claude Code + Codex; not an MCP coordination layer | partialruns Claude Code and any terminal agent in its panes; native macOS app, no MCP rail |
| Shared interface contracts | yesdeclare_contract, versioned + dependency-aware | noshares a local task list, not contracts | no | nono shared interface registry | partialAugment Intent has a living spec, single dev | nostores facts, not interface shapes | nospecs live in tickets, not in the agent loop | noshares state + tasks, not interface shapes | nono interface-contract concept | nono contract concept | nono contract concept; you share the terminal itself |
| Contract negotiation | yespropose, push back, finalize a shape change | no | no | nono inter-agent negotiation primitive | no | no | no | nodecisions + approvals, not interface negotiation | nono negotiation; skills are pushed via weekly PRs | no | nohumans talk it out over the shared session |
| Collision alert before merge | yeswarned the moment a dependency changes | noconflicts surface at merge | no | no | partialPR review (Bugbot, Copilot) is post-push | no | partialCI / PR review catches it after the push | nonot interface-aware, no pre-merge alert | noskill compliance on PRs, not interface-collision alerts | no | nonothing watches separate sessions for conflicts |
| Operator directives | yesone standing order pins to every agent's context | partiala lead steers its own teammates in-session | partialstatic instruction files, not a live directive | partialyou script the control flow in code | partialstatic team rules, not live directives | no | partialassign work via tickets, not live steer | partialroles + decisions, not a pinned directive | nono standing operator directive | no | noyou drive by taking over a pane, live |
| Soft-lock claims | yesclaim a file, overlap is flagged to others | noagents share one filesystem, no claim | no | no | noparallel agents can overwrite each other | no | no | yesagents claim tasks in a space | nono claims | no | nocoordination is social, inside the room |
| Tickets / work assignment | yesassign tickets to agents from the cockpit | partialshared task list inside one session | noan API of interactions, not a work board | partialtasks are nodes you wire by hand | no | no | yesthis is exactly what they are built for | yestask state with claims | nono tickets | no | nonone documented |
| Durable team memory | yesdecisions + plan persist across sessions + machines | nolocal task list, scoped to one session | partialsandbox files persist, retained 7 days offline; no shared team log | partialyou add a store, not built in | partialWindsurf memories are per-user local | yesthis is their core competency | partialhistory lives in tickets, not the agent loop | yesdecisions + evidence persist across sessions | yesper-session extractions: decisions, blockers, conventions | noyour own session history, not a shared team log | nosessions persist and resume; no decisions or memory rail |
| Live dashboard | yeswatch the whole fleet coordinate in real time | partialagent view is a local terminal cockpit | nointeraction states over the API; no fleet dashboard documented | partialLangSmith and peers trace runs | partialadmin + usage dashboards | partialinspect stored memories | yesrich human-facing dashboards | noCLI and protocol, no fleet dashboard | yeslive sessions view; one headline stat self-labelled an Illustrative estimate | partiala mobile + web view of your OWN live sessions | partialthe shared terminal room is the live view; no team dashboard |
| CLI cockpit | yesaethereum mission to steer from the terminal | yesclaude agents terminal cockpit | noan API surface, not a cockpit | partialyou build your own runner | partialCopilot CLI, varies by tool | no | partialCLI exists, human-centric | yesCLI-based | partialdesktop app + menu bar, not a CLI cockpit | partiala CLI wrapper plus a mobile app | partialthe app IS a terminal; no mission-control command layer |
| GitHub / Slack / Linear | partialintegrations are early | no | partialrepos clone into the sandbox; creds injected by an egress proxy | partialyou wire them as tools | partialvaries; PR + issue hooks | no | yesthey ARE these platforms | nonot its focus | partialPR compliance board + weekly skill PRs | no | nonone documented |
| MCP-native | yesthe whole surface is MCP tools | partialClaude Code consumes MCP | partialagents connect OUT to remote MCP servers; coordination is not an MCP surface | partialconsume MCP, some expose it | partialmost consume MCP servers | partialMCP-memory is, others vary | partialemerging MCP + A2A support | partialits own protocol, works alongside MCP agents | noclosed extraction pipeline, not MCP | nowraps the agent process, not an MCP server | noSwift/AppKit app on libghostty; no MCP surface documented |
| Source code stays private | yesby default only the interfaces an agent publishes leave the machine; opt-in code sharing is end-to-end encrypted, so the server holds only ciphertext it cannot read | yesstate stays on local disk | noyour repo is cloned into a Google-hosted sandbox to run | partialdepends on what you send the model | nocloud agents send your code to run | partialyou choose what to store | partialagents touch the repo to do the work | partialevidence can carry files + command output | noextraction requires server-readable transcripts; no published encryption model | yesopen-source, client-side E2EE; the relay stores only ciphertext | nosharing a live terminal shares everything on it, including source, by design |
| Zero-install / quick setup | yesone command, about thirty seconds | partiala flag, but Claude Code only | yesa single API call provisions the sandbox | noyou build the application | partialinstall the editor, sign in | partialrun a server or sign up | partialaccount + repo wiring | yeslocal spaces, no signup | nowaitlist + demo call to start | yesnpm i -g happy, then happy claude | partialdownload the macOS app and open a room; macOS only |
| Pricing | yesfree to start, no card | partialinside Claude paid plans | partialpreview: standard Gemini token rates; sandbox compute unbilled during preview | yesOSS core, paid hosted tiers | partialper-seat, $19 to $500 / mo | partialfree tier, then usage | partialper-seat business tiers | partiallocal free; cross-machine $15/mo | no$100 per user per month, free tier capped at 3 members | yesfree and open source | partialfree Hobby tier; Team is $200 per seat per month, up to 20 seats |