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Head to head · Assistants reached by message · October 2026 research run

nanobot vs szn

nanobot scores 62.4 (B) on agent readiness against szn's 7.3 (F), and leads in every scored category. Both do assistants reached by message.

Best AI personal assistants that act for one person · All 834 assistants comparisons

nanobotHKUDS · Agent harness B62.4/100#446 of 1010 sznNomadic Futures · Platform F7.3/100#1010 of 1010

Which one, for what

nanobot B

Best for A technical owner who wants an assistant on their own machine across many chat apps, with file-based memory and a free choice of model.

Ahead on

  • Reliability, 70 against 5
  • Schema & documentation, 77 against 10
  • Agent ergonomics, 74 against 0
  • Security & auth, 63 against 0
  • Payments & pricing, 60 against 20
  • Maintenance & community, 82 against 2
  • Transparency & trust, 48 against 23

Also in its favour

  • No key needed to call it
  • Open source

Watch for

No per-action approval was found in the docs or source. The agent sends messages, runs shell commands and edits files without asking

szn F

Best for A person who wants calls, emails and bookings done for them and has an access code.

Also in its favour

  • No incidents deducted, where nanobot loses 6 points for them

Watch for

Early access by access code only.

Score by category

CategoryWeight this runnanobotsznEdge
Reliability16%20705nanobot +65
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27710nanobot +67
Agent ergonomics13%16.2740nanobot +74
Security & auth14%17.5630nanobot +63
Payments & pricing10%12.56020nanobot +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8822nanobot +80
Transparency & trust7%8.84823nanobot +25
Negative events≤15-60
TotalB 62.4/100F 7.3/100

Facts side by side

Factnanobotszn
KindAgent harnessPlatform
VendorHKUDSNomadic Futures
Hosted endpointno (local only)no (local only)
Transports
AuthNoneOAuth or key
PricingFreeFree
x402nono
LicenceMITClosed service. No terms of service were found on theszn.ai. A privacy policy and an acceptable use policy (both last updated March 2026) apply.
Read-only variant documentednoyes
llms.txtyesyes
Last release2026-09-15none
Terms last updatedno document linkedno document linked
Privacy policy last updatedno document linked
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Popularity49k starsnone

Verdicts

nanobot

nanobot runs on the owner's machine under the MIT licence, with no telemetry found in its source and memory kept as files the owner can read and restore. No per-action approval step was found, and the shell sandbox and workspace restriction are off by default. Five security advisories were published between March and September 2026, all with fixes.

szn

szn is an errand assistant in early access that makes calls, sends emails and books for its owner, free during the preview for people with an access code. No outside agent can call it, no terms of service or legal entity appear in its policies, and its privacy policy says nothing on training.

Before you call either

nanobot

  1. Set tools.restrictToWorkspace to true and tools.exec.sandbox to bwrap or seatbelt before giving it real accounts. Both are off by default
  2. Run 0.3.0 or later. Earlier versions carry the published SSRF flaw in web fetch (GHSA-vc5v-6vwm-wf9m)
  3. Keep allowFrom narrow on every channel and never set ["*"] on Email, which has no pairing
  4. Write secrets as ${VAR} references in ~/.nanobot/config.json. Plain values are stored in clear text
  5. Use nanobot -m "..." for a one-shot run, and keep nanobot gateway running for channels, schedules and heartbeat

szn

  1. Don't plan to call szn from another agent. It answers only its web app, iMessage, SMS and email for the owner.
  2. Tell the owner they need an access code to start, and that the acceptable use policy makes them responsible for confirming actions.

Questions

Which is better for AI agents, nanobot or szn?

nanobot scores 62.4 (B) on agent readiness against szn's 7.3 (F), and leads in every scored category.

Are nanobot and szn open source?

nanobot is open source (MIT). No open-source release is listed for szn.

Other comparisons with nanobot or szn

Disclosure

szn 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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