October edition
1,000 runs from two engines
- ChatGPT and, new this month, Claude: 25 prompts in each of 20 categories
- A vendor's rate averages the two engines
- The protocol calls for three runs over two days, so treat this as a first reading
The AI Shortlist Index · October 2026
Every month we ask AI engines the questions a property manager asks when choosing software and record who gets named. The October 2026 edition asked ChatGPT and Claude, one run per prompt on each.
October edition
1,000 runs from two engines
Leaders
95% FilterTime, named in HVAC filter delivery runs on both engines
Two engines
66% of ChatGPT's links went to vendor sites, against 39% of Claude's
Instrument
3.8 vendors per ChatGPT API answer, against 4.5 in September's app answers
The answers cited webpossible.com 147 times across 19 of the 20 categories, 104 of them in Claude's answers. WebPossible publishes the Index, so each source map marks it as the publisher's own site.
Resident services
Bundled resident-facing services (renters insurance compliance, HVAC filter delivery, credit reporting, rewards, move-in concierge, pest control) sold by a property manager as a monthly package, delivered and billed through a platform.
50 runs · 3 of top 3 named · source map
Apps that give residents a place to talk to the office and to each other, with announcements, events, polls, a marketplace, maintenance requests, and amenity booking. They aim at renewals and reviews rather than operations. Buyers ask how many residents install and open the app, whether it duplicates the property management system's resident portal, and who moderates the neighbor-to-neighbor content.
50 runs · 3 of top 3 named · source map
The resident-facing app and service layer that sits on top of the property management system, covering announcements, amenity booking, event sign-ups, service requests, digital perks, and messaging with the office. In multifamily this is often the umbrella term for what single-family managers call a benefits package. Buyers judge it on resident adoption, renewal effect, and how much of it the property management system already does.
50 runs · 3 of top 3 named · source map
Recurring pest treatment sold as a program rather than a per-call service. Scheduled preventive visits, on-demand treatment when a resident reports a problem, and a flat monthly cost per unit that can be passed through in a benefits package. Buyers want fewer emergency calls, one vendor across a portfolio, and a clean answer when a resident asks who pays for the treatment.
50 runs · 3 of top 3 named · source map
Programs that keep every resident in compliance with the lease's renters insurance requirement. They track proof of coverage, chase lapses, and enroll residents who fail to buy their own policy into a landlord-facing master policy that covers damage to the unit but not the resident's belongings. Buyers want compliance without staff time and a clear line between liability-only coverage and a real HO-4 policy.
50 runs · 3 of top 3 named · source map
A subscription that ships the right size air filter to each unit on a schedule, so residents change them and the HVAC system lasts. The manager sets the size and interval per unit, the service handles shipping, and the cost is often folded into a benefits package. Buyers want fewer HVAC service calls and proof that filters were delivered when a system fails.
50 runs · 3 of top 3 named · source map
Leasing and payments
Background checks run on rental applicants, covering credit, criminal and eviction history, income verification, identity checks, and fraud detection on uploaded documents. Screening is either built into the property management system or bought from a specialist that returns a score or recommendation against the manager's criteria. Buyers weigh accuracy, fair housing compliance, fraud detection, turnaround time, and who pays the fee.
50 runs · 3 of top 3 named · source map
Automated agents that answer prospect inquiries by text, email, chat, and phone, qualify the lead, schedule tours, and follow up until the prospect applies or goes quiet. They plug into the leasing CRM and the property management system so the office sees every conversation. Buyers judge them on response time, lead-to-tour conversion, how they hand off to a human, and what they get wrong.
50 runs · 3 of top 3 named · source map
Ways for residents to pay rent electronically, including bank transfer, card, cash at a retail counter, and autopay, posted to the resident ledger in the property management system. Most systems include native payments. Specialist platforms compete on fees, settlement speed, incentives such as rent reporting, and edge cases like split payments and roommates. Buyers watch who pays the processing fee.
50 runs · 3 of top 3 named · source map
Products that replace a cash security deposit with a surety bond, an insurance policy, or a monthly fee, so a resident moves in with less cash up front and the owner keeps protection against damage and unpaid rent. Buyers want faster lease- ups and fewer deposit disputes, and they ask who pays claims, how fast, and what the resident is told at signing.
50 runs · 3 of top 3 named · source map
Building systems
Keyless entry, smart locks, video intercoms, gate and amenity-door access, and the credential platform that ties them to move-ins, move-outs, vendors, and self-guided tours across an apartment community.
50 runs · 3 of top 3 named · source map
Billing and tracking for water, sewer, gas, electric, and trash across a community. Submetering or ratio billing allocates costs to residents, vacant-unit cost recovery and utility expense management serve the owner, and move-in setup help serves residents. Buyers want to recover utility costs they now absorb, cut billing disputes, and get the charges onto the resident ledger automatically.
50 runs · 3 of top 3 named · source map
Software and hardware for assigning and enforcing parking at a community, with permits tied to units, guest passes, paid spots, license-plate recognition, and gate or garage access. Buyers want to stop unauthorized cars, monetize unused spaces, and give residents a way to register a guest without calling the office. Enforcement partners and towing rules matter as much as the app.
50 runs · 3 of top 3 named · source map
Charging stations installed at an apartment community, plus the software that bills residents for the electricity, manages who can charge, and shares limited power across chargers. Buyers ask about installation cost, utility rebates, who owns the hardware, how residents pay, and what happens when a charger breaks. Demand comes from residents and from local building rules.
50 runs · 3 of top 3 named · source map
Lockers, package rooms, and delivery-notification software that accept resident deliveries when nobody is at the office, log each arrival, notify the resident, and record the pickup. Buyers want to stop staff from signing for and storing parcels, cut theft from lobbies, and give carriers a way in without handing out keys. Hardware, software, and a recurring fee are usually bundled.
50 runs · 3 of top 3 named · source map
Connected thermostats, locks, leak sensors, and lighting installed across every unit and managed from one dashboard, usually through a hub in each apartment. Operators use it to cut vacant-unit energy costs, catch leaks early, run self- guided tours, and give residents app control. Buyers weigh hub connectivity, battery life, what happens offline, and whether it locks them into one lock brand.
50 runs · 3 of top 3 named · source map
Operations and compliance
Platforms that intake, triage, and coordinate resident maintenance requests, dispatch in-house technicians or a managed third-party vendor network, and track work orders, approvals, invoices, and vendor compliance.
50 runs · 3 of top 3 named · source map
Software for running homeowner and condo associations, with assessments and dues collection, board and owner portals, architectural requests, violation tracking, meeting records, and financial reporting for the board. Community association managers run it across many associations at once, each with its own books. Buyers weigh accounting depth, board self-service, and how residents pay.
50 runs · 3 of top 3 named · source map
Software for operating commercial buildings, covering tenant service requests, preventive maintenance schedules, asset and equipment records, vendor management, inspections, and compliance logs, often sold as a CMMS or IWMS. It is bought by facilities and engineering teams rather than leasing staff. Buyers weigh work-order depth, mobile use for technicians, and how it ties to the lease accounting system.
50 runs · 3 of top 3 named · source map
Software that keeps subsidized properties compliant with program rules, including income certification and recertification, rent and income limits, tenant file audits, and reporting to housing agencies and investors. Compliance teams at affordable operators and syndicators run it on top of, or inside, the property management system. Buyers weigh program coverage, audit trails, and how much of the certification a resident can complete online.
50 runs · 3 of top 3 named · source map
| Engine | Status | Model | Runs | Note |
|---|---|---|---|---|
| ChatGPT | ran | gpt-6-luna, gpt-6-thinking, gpt-6.1-terra | 500 | |
| Claude | ran | claude-haiku-5-5 | 500 |
Each category runs 25 prompts written the way a property manager asks, one run per prompt on each engine measured (ChatGPT and Claude this edition); the protocol calls for three runs on separate days. A vendor’s mention rate is the share of runs that named it; rank is by mention rate; consistency shows whether an engine flips between runs. The methodology states every rule, the prompt library is public and versioned, and the publication policy covers corrections and re-checks. Editions are archived at the archive and method changes at the Index changelog.
Paying WebPossible never affects Index placement. The Index measures what AI engines say. Clients buy the work that earns a position, not the position.
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