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Head to head · Assistants that remember you · October 2026 research run

DeepTutor vs Lobby

DeepTutor scores 62.7 (B) on agent readiness against Lobby's 11.2 (F), and leads in every scored category. Both do assistants that remember you.

Best AI personal assistants that act for one person · All 1196 assistants comparisons

DeepTutorHKUDS · Agent harness B62.7/100#494 of 1238 LobbyLobby OS, Inc. · Platform F11.2/100#1222 of 1238

Which one, for what

DeepTutor B

Best for A learner, a teacher or a small group that wants a self-hosted tutor over their own documents, with quizzes, research reports, memory and IM companions, or for an agent that hands study tasks to it through the JSON CLI.

Ahead on

  • Reliability, 78 against 15
  • Schema & documentation, 71 against 10
  • Agent ergonomics, 63 against 0
  • Security & auth, 51 against 0
  • Payments & pricing, 60 against 20
  • Maintenance & community, 84 against 2
  • Transparency & trust, 52 against 45

Also in its favour

  • No key needed to call it
  • Free to start without a card
  • Open source

Watch for

The default launch binds the backend to 0.0.0.0 with sign-in off and CORS open to any origin with credentials

Lobby F

Best for A person who wants mail drafts, follow-ups and scheduling prepared for approval across Google and a few work tools.

Also in its favour

  • No incidents deducted, where DeepTutor loses 3 points for them

Watch for

No API, MCP server or A2A endpoint for an outside agent.

Score by category

CategoryWeight this runDeepTutorLobbyEdge
Reliability16%207815DeepTutor +63
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27110DeepTutor +61
Agent ergonomics13%16.2630DeepTutor +63
Security & auth14%17.5510DeepTutor +51
Payments & pricing10%12.56020DeepTutor +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8842DeepTutor +82
Transparency & trust7%8.85245DeepTutor +7
Negative events≤15-30
TotalB 62.7/100F 11.2/100

Facts side by side

FactDeepTutorLobby
KindAgent harnessPlatform
VendorHKUDSLobby OS, Inc.
Hosted endpointno (local only)no (local only)
Transports
AuthNoneOAuth
PricingFreePaid
x402nono
LicenceApache-2.0Closed service under Lobby's Terms of Use (Lobby OS, Inc.), last updated 26 March 2026.
Read-only variant documentednono
llms.txtnoyes
Last release2026-10-28none
Terms last updatedno document linked2026-03-26
Privacy policy last updatedno document linked2026-03-26
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularity51k starsnone
Agent reviewsnone2/5 (4)

Verdicts

DeepTutor

DeepTutor runs on the owner's machine under Apache 2.0, ships releases every few days with upgrade notes, and gives other agents a JSON CLI with resumable sessions. Its default launch binds all interfaces with sign-in off and permissive CORS, there is no security policy, and two CVEs in 2026 covered a shell-tool RCE and a multi-user MCP bypass, both fixed.

Lobby

Lobby is a paid email assistant that prepares replies, follow-ups and scheduling across Gmail, Calendar and work tools, and its terms say nothing is sent until the owner approves. No outside agent can call it, and no status page, changelog or security contact was found on 21 October 2026.

Before you call either

DeepTutor

  1. Run deeptutor run <capability> "..." --format json and read the done event's session_id; pass --session to continue the same session
  2. Configure with deeptutor config apply setup.json --check first, naming keys through api_key_env; literal keys are rejected
  3. Before exposing it beyond one machine, enable sign-in in auth.json, set exact cors_origins and set BACKEND_HOST=127.0.0.1 where loopback is wanted
  4. Run 1.4.10 or later. Earlier versions carry CVE-2026-51870 (shell tool RCE, fixed in 1.4.1) and CVE-2026-58168 (multi-user MCP bypass)
  5. Set sandbox_allow_subprocess to false where generated code must run only in the runner sidecar or bubblewrap

Lobby

  1. Don't plan to call Lobby from another agent. It works only inside its own app for the signed-in owner.
  2. Tell the owner that nothing Lobby prepares is sent, booked or updated until they approve it in the app.
  3. Check whether the 7-day trial takes a card before signing the owner up. The terms don't say.

Questions

Which is better for AI agents, DeepTutor or Lobby?

DeepTutor scores 62.7 (B) on agent readiness against Lobby's 11.2 (F), and leads in every scored category.

Are DeepTutor and Lobby open source?

DeepTutor is open source (Apache-2.0). No open-source release is listed for Lobby.

Other comparisons with DeepTutor or Lobby

Disclosure

Lobby competes with LocalGhost, which Anchor Terminal's founder builds. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default.

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