The person who knows how it works will leave.
What they know can stay.
Sentinel is the Apex Replicant enterprise line for key-person risk. Your senior expert's judgment, in their voice, ready for new hires in under 24 hours.
The knowledge walks out the door.
The engineer everyone interrupts, with ten years of judgment in their head, doesn't write it down. The master craftsman who can read a job in 30 seconds doesn't document the read. The senior partner whose judgment closes the deal doesn't have a methodology doc to hand to the new hire.
That tacit knowledge is what makes the company. And it walks out the door the day they do.
The institutional expert inside your company (senior engineer, master craftsman, senior partner) gets a Digital Protégé trained on their methodology. New hires onboard against it. The company keeps the knowledge when that person retires, resigns, is recruited away, or is simply out.
Most knowledge tools in this category are text-based: Q&A, search, summaries. Sentinel captures what those tools can't: the live voice of the person who built the business, available to your team on demand.
How it works.
Structured interview
We sit down with your institutional expert across a series of guided voice sessions. The Apex Replicant platform records, transcribes, and structures the methodology that lives in their head.
Voice training
The Protégé is trained on their voice, their philosophy, their decision rules, and the way they actually talk about the work. We ship the first version in under 24 hours from the final interview.
Ongoing refinement
Every new conversation a team member has with the Digital Protégé sharpens it. The institutional expert can drop in feedback any time ("be less formal", "always reference the post-mortem framework") and the Protégé updates itself in one request.
Why Sentinel beats text-first knowledge tools.
- Search tools find only the docs you have already written.Sentinel captures the methodology that was never in a doc.
- Text assistants answer only from what someone typed.Sentinel answers in your expert's actual voice, on a live call.
- Verified-answer tools confirm text, not judgment.Sentinel's verification is the expert refining the Protégé in real time.
- A custom GPT needs a week of dictation plus a prompt engineer.Sentinel ships in under 24 hours after the final interview.
Sentinel is built for these teams.
Manufacturing and industrial operations
The engineer or machinist who can read a job in thirty seconds. Their judgment on shift, in every language your line speaks, before the day they are not there.
Professional services firms
The senior partner whose judgment closes the deal and answers the hard client question. New associates ask the Protégé first; the partner hears only what is new.
PEOs, brokers and continuity partners
Key-person risk inside your client accounts. Put your best advisors in front of every account, and give clients a continuity answer that is not a binder.
Enterprise teams with the one person everyone interrupts
Engineering, sales enablement, support. One expert, a queue of questions, and a company that slows down whenever they are out.
Family-owned businesses
The owner-operator whose judgment is the business. Decades of decisions never written down, and a next generation that needs them on call.
Live capture workshops.
For companies with an expert approaching retirement or transition, we run live capture workshops: a structured one-to-two-day engagement to extract and voice-record the methodology that defines the practice. An optional add-on, priced by scope. No plan requires one.
Ask about a capture workshop when you start the conversation below.
Pricing.
Start with The 30-Day Continuity Proof: $1,247, one expert hour, a measured result in 30 days, no contract. Every Sentinel plan is month to month: no contract, no onboarding fee, cancel any time. Each plan includes a pool of hours, billed by the minute. Hours beyond the plan are billed at the plan's overage rate.
| Continuity | Succession | Enterprise | |
|---|---|---|---|
| Monthly | $1,497/mo | $3,497/mo | $7,997+/mo |
| Digital Protégés | 1 Digital Protégé | Up to 3 Digital Protégés | Unlimited Digital Protégés |
| Employee accounts | Up to 20 employee accounts | Up to 100 employee accounts | Unlimited employee accounts |
| Hours included | 25 hours per month voice usage | 75 hours per month voice usage | 200 hours per month voice usage |
| Overage | $42 an hour beyond the 25 included hours | $40 an hour beyond the 75 included hours | $36 an hour beyond the 200 included hours |
| Audit trail exports | — | Included | Included |
| Single sign-on | — | — | Included |
| Contract | None. Cancel any time. | None. Cancel any time. | None. Cancel any time. |
- Continuity
Continuity
$1,497/mo1 Digital Protégé, up to 20 employee accounts, 25 hours a month
Best for: One expert's Digital Protégé for a team of up to 20.
- 1 Digital Protégé
- Up to 20 employee accounts
- 25 hours per month voice usage
- Structured interview + voice training
- Refinement loop (auto-regen + AI-surfaced suggestions)
- No contract, no auto-renewal, cancel any time
Overage: $42 an hour beyond the 25 included hours - Most Popular
Succession
$3,497/moUp to 3 Digital Protégés, up to 100 employee accounts, 75 hours a month
Best for: Multi-team operations where several institutional experts each need their own Digital Protégé.
- Up to 3 Digital Protégés
- Up to 100 employee accounts
- 75 hours per month voice usage
- Audit trail exports
- Every answer scoped by company, Digital Protégé, user and session
- No contract, no auto-renewal, cancel any time
Overage: $40 an hour beyond the 75 included hours - Enterprise
Enterprise
$7,997+/moUnlimited Digital Protégés and employees, 200 hours a month, SSO, SOC 2 Type II readiness, dedicated success
Best for: Multi-site organizations with compliance review and a portfolio of senior experts to preserve.
- Unlimited Digital Protégés
- Unlimited employee accounts
- 200 hours per month voice usage
- Single sign-on (SSO)
- SOC 2 Type II readiness controls + audit-trail exports
- Dedicated customer success
- No contract, no auto-renewal, cancel any time
Overage: $36 an hour beyond the 200 included hours
SOC 2 Type II readiness controls are in place. There is no completed audit.
Common questions.
- What's the difference between Sentinel and a search or wiki AI tool?
- Those tools search what your team has already written down. Sentinel captures what your senior expert never wrote down: the live, voice-based judgment they use every day. Different problem, different mechanism.
- How long until our team can talk to a Digital Protégé?
- The first Digital Protégé ships in under 24 hours after the final structured interview. The structured-interview process itself runs across 1 to 5 sessions depending on the depth of methodology being captured.
- What happens if our institutional expert leaves before we finish?
- That's the failure mode Sentinel exists to prevent. The structured-interview process is designed to capture methodology in phases: even a single interview produces a usable v1 Digital Protégé. The longer the runway, the deeper the capture.
- Is our data isolated from other Sentinel customers?
- Yes. Every answer is scoped by company, Digital Protégé, user and session. Hard isolation is enforced when the answer is retrieved. Enterprise tier adds SOC 2 Type II readiness controls. See /security for the full architecture.
- Do new hires need to install anything?
- No. New hires talk to the Digital Protégé through a voice widget on your internal portal, or via a phone number we provision for your company. Browser plus microphone is the only requirement.
Talk to us about
your Digital Protégé.
Your senior expert is not getting younger. The methodology is not getting written down. Sentinel is the bridge.
