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

DeepTutor vs Tab

DeepTutor scores 62.7 (B) on agent readiness against Tab's 10.6 (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 TabTerrasoft, Inc. · Platform F10.6/100#1223 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 5
  • Schema & documentation, 71 against 0
  • Agent ergonomics, 63 against 0
  • Security & auth, 51 against 4
  • Payments & pricing, 60 against 0
  • Maintenance & community, 84 against 58
  • Transparency & trust, 52 against 44

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

Tab F

Best for A person who wants a texting assistant that browses, calls and buys with tight checkout controls.

Also in its favour

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

Watch for

Private beta behind a waitlist.

Score by category

CategoryWeight this runDeepTutorTabEdge
Reliability16%20785DeepTutor +73
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.2710DeepTutor +71
Agent ergonomics13%16.2630DeepTutor +63
Security & auth14%17.5514DeepTutor +47
Payments & pricing10%12.5600DeepTutor +60
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88458DeepTutor +26
Transparency & trust7%8.85244DeepTutor +8
Negative events≤15-30
TotalB 62.7/100F 10.6/100

Facts side by side

FactDeepTutorTab
KindAgent harnessPlatform
VendorHKUDSTerrasoft, Inc.
Hosted endpointno (local only)no (local only)
Transports
AuthNoneOAuth or key
PricingFreePaid
x402nono
LicenceApache-2.0Closed service under Tab's Terms of Use (Terrasoft, Inc., effective 2 September 2026).
Read-only variant documentednono
llms.txtnono
Last release2026-10-28none
Terms last updatedno document linked2026-09-02
Privacy policy last updatedno document linked2026-09-02
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 reviewsnone1.8/5 (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.

Tab

Tab is a private-beta texting assistant with a detailed security page on credential isolation and checkout binding, and a public updates page. No outside agent can call it, no price is published, and its privacy policy says nothing on training with user content.

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

Tab

  1. Don't plan to call Tab from another agent. It answers only the owner's Messages or WhatsApp thread.
  2. Tell the owner that access needs a waitlist place and no price is published.

Questions

Which is better for AI agents, DeepTutor or Tab?

DeepTutor scores 62.7 (B) on agent readiness against Tab's 10.6 (F), and leads in every scored category.

Are DeepTutor and Tab open source?

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

Other comparisons with DeepTutor or Tab

Disclosure

Tab 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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