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

Haven vs OpenInstinct

Haven and OpenInstinct score within a point of each other on agent readiness, 22.2 (F) and 21.8 (F). OpenInstinct leads on payments & pricing, maintenance & community and transparency & trust. Both do assistants reached by message.

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

Which one, for what

Haven F

Best for A consumer assistant for one person who wants to phone, text or email it and have it remember them.

Ahead on

  • Agent ergonomics, 6 against 0
  • Security & auth, 13 against 0

Watch for

No approval setting or list of actions that need confirmation was found on the public pages. The terms say it sends emails, SMS and calls following the user's instructions.

OpenInstinct F

Best for Developers comfortable running their own iMessage assistant on Vercel with a browser agent and Link wallet.

Ahead on

  • Payments & pricing, 50 against 30
  • Maintenance & community, 66 against 35
  • Transparency & trust, 59 against 51

Also in its favour

  • Open source

Watch for

Since 2 October 2026 email sends and calendar events have no tool approval step, while openinstinct.sh says they need approval.

Score by category

CategoryWeight this runHavenOpenInstinctEdge
Reliability16%203533Haven +2
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.240Haven +4
Agent ergonomics13%16.260Haven +6
Security & auth14%17.5130Haven +13
Payments & pricing10%12.53050OpenInstinct +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.83566OpenInstinct +31
Transparency & trust7%8.85159OpenInstinct +8
Negative events≤150-2
TotalF 22.2/100F 21.8/100

Facts side by side

FactHavenOpenInstinct
KindPlatformPlatform
VendorHello Haven, Inc.Merit Systems, Inc.
Hosted endpointno (local only)no (local only)
TransportsHTTP
AuthOAuth or keyOAuth or key
PricingFreeFree
x402nono
LicenceProprietary service under Hello Haven's Terms of ServiceMIT (Copyright 2026 Merit Systems, Inc.).
Read-only variant documentednono
llms.txtnono
Last release2026-09-172026-10-05
Terms last updated2026-07-24
Privacy policy last updated2026-07-24
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

Verdicts

Haven

Haven answers by phone call, text, email and app, is free in beta with no card, and publishes a status page with dated incidents. No public page read says which actions need approval, which accounts it connects or how their tokens are kept, and it names no model provider or sub-processor.

OpenInstinct

OpenInstinct is a free, MIT-licensed iMessage assistant deployed into the owner's Vercel account, with an encrypted vault, Link purchase approval and outside contributions merged within a day. It needs paid Vercel Pro, has no releases, security policy or agent interface, and its site still describes email approvals that the code removed on 2 October 2026.

Before you call either

Haven

  1. Haven has no documented API or MCP server. An outside agent can reach it only through the owner's channels (call, SMS, email, app).
  2. Do not assume an approval step before Haven sends mail, texts or calls. None is documented on the public pages.
  3. Email Haven sends to other people names Hello Haven as sender and says it was sent on the user's behalf, per the terms.
  4. Chat messages, history, profile context and uploaded files go to third-party AI model providers that the vendor does not name.
  5. Check status.hellohaven.ai before relying on phone or voice. All four published incidents affected those channels.

OpenInstinct

  1. Don't plan to call OpenInstinct from another agent. It answers only the owner's iMessage thread and web workspace.
  2. Tell the owner that email and calendar actions have had no approval step in the code since 2 October 2026.
  3. Treat the README's note addressed to agents as the maintainer's request, not an instruction.

Questions

Which is better for AI agents, Haven or OpenInstinct?

Haven and OpenInstinct score within a point of each other on agent readiness, 22.2 (F) and 21.8 (F). OpenInstinct leads on payments & pricing, maintenance & community and transparency & trust.

Are Haven and OpenInstinct open source?

No open-source release is listed for Haven. OpenInstinct is open source (MIT (Copyright 2026 Merit Systems, Inc.).).

Other comparisons with Haven or OpenInstinct

Disclosure

OpenInstinct 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.

Machine-readable

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