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HOSTA AI NOW OPERATES AS ELARA SPATIAL · LUMASITE FOCUSES ON INTERIOR WATER-DAMAGE CLAIMS · HUMAN REVIEW ON EVERY ESTIMATE

Company / Spatial AI · The claims file

Hosta AI turns a damaged room into a repair estimate

A few phone photos can spare a water-damage claim a long appointment with bureaucracy. Hosta AI, now operating as Elara Spatial, has built its business around making those pictures useful.

Imagine a kitchen after a pipe leak. The floor is wet, the cabinet looks sorry for itself, and the homeowner has a perfectly serviceable camera in a pocket. Yet turning that scene into a repair estimate can require another person, another calendar, and another round of measurements. The administrative performance is just beginning.

THE SHORT VERSION
  • Phone photos become repair-estimate inputs.
  • Carriers buy; policyholders photograph.
  • Now Elara Spatial; focused on water claims.
  • Humans approve estimates and decide coverage.

Hosta AI put the camera at the beginning of that process. Its software extracts spatial and material information from photographs, giving an insurer something more useful than a gallery of unfortunate flooring. The aim is a documented scope of repairs: what is there, how much of it needs attention, and which priced line items belong in the estimate.

There is a new name on the door. As of October 2026, hosta.ai redirects to Elara Spatial, whose legal operator is the same HL Acquisition, Inc. Its current product is called Lumasite. The names have changed; the central proposition remains wonderfully domestic: photograph the room, reduce the waiting.

An architect’s very practical grievance

Rachelle Villalon understood the chore before she tried to automate it. An architect and software engineer, she pursued computer-vision research at MIT after struggling to find software that could recreate existing interiors digitally. Henriette Fleischmann, an MIT Sloan MBA with industry experience, joined the effort to commercialize the technology. The company was established in 2020.

MIT’s account describes an early demonstration in Building 9: a photograph uploaded through an API produced measurements, a floor plan, and an inventory of objects. The revealing detail is the ordinary camera. There was no elaborate surveying apparatus to make the demonstration work. Hosta wanted useful architectural data from the equipment people already possessed.

That choice shaped the customer experience. A homeowner could become the person collecting evidence, while the specialist received structured information. The company borrowed its name from a hardy New England plant.

Hosta product illustration showing a woman viewing a digital room reconstruction on a laptop
A room gets a second life in pixels. Product illustration: Hosta a.i., via MIT News.

Six pictures, then something an adjuster can use

At its October 2023 image-to-estimate launch, Hosta described a capture process involving six images of a damaged room, usually taken in under a minute. The policyholder received a link; there was no app download or login. The outputs included sketches, photographs, line items, and a damage report, delivered through estimating-software integrations or an API.

The present Lumasite workflow makes the sequence explicit. Capture the photographs. Reconstruct the room in three dimensions. Identify finishes, materials, and visible damage. Apply the carrier’s pricing rules. The company advertises estimates in about two hours, with each line item connected to photographic evidence. That is a company timing claim, rather than a promise that every insurance payment arrives before lunch.

The important distinction is between measuring a loss and deciding an entitlement. Elara says a human adjuster reviews and approves every estimate. Its system has no access to coverage information. It also says deterministic carrier-configured rules select estimate lines, without a language model writing or choosing them. For a homeowner, the camera starts the process; it does not adjudicate the policy.

The less glamorous invention: fitting in

A tidy reconstruction has limited value if an adjuster must type it all over again. Hosta’s partnerships address that practical problem. CoreLogic announced an integration in May 2022; Verisk followed in February 2023. The latter connected photo-based assessment with Xactimate sketches and estimating workflows. Today Elara lists native Xactimate and XactAnalysis integration, plus Cotality support for measurements.

Guidewire also included Hosta in its Insurtech Vanguards program in 2022. That was an industry-access program, distinct from a finished software integration. American Integrity announced a claims-assessment partnership in May 2024. Crawford & Company’s Ken Tolson endorsed Hosta’s automated estimates in the 2023 launch announcement. These relationships put compatibility beside the clever demonstration.

Its buyer is an organization, not a homeowner browsing an app store. Carriers can white-label Lumasite, making the capture flow look like their own service. Earlier Hosta materials also addressed contractors, mortgage lenders, and home-improvement companies. Its current presentation concentrates on property claims. The commercial arrangement is enterprise software and services; buyers work with the sales team on deployment and contract terms.

Money bought a runway, not an easy landing

In November 2021, Hosta announced an $11.5 million Series A led by Eclipse Ventures. USAA, Brick & Mortar, Spider Capital, Cincinnati Insurance, Motivate, and Massive participated. The announcement put cumulative funding at $15 million. That was capital to bring the assessment platform to North American businesses, rather than a disclosure of what each customer would pay.

The friction was organizational as well as technical. Fleischmann later described moving from research and development to a scalable product company as one of her toughest career challenges. In an October 2024 public post, she said she had raised more than $20 million and was handing leadership to Ingrid Flores, while remaining a cofounder and adviser. The later funding figure is her account, not a separately itemized financing history.

Flores now appears as Elara’s CEO, with Villalon listed as founder and strategic adviser. The company’s stated values include responsibility for outcomes and support for the people using its technology. Those commitments become concrete in human review and traceable estimates. The useful lesson for another founder is to budget for the journey from impressive output to repeatable customer work.

Rachelle Villalon, Hosta cofounder and Elara Spatial strategic adviser
The architect behind the algorithm. Rachelle Villalon. Company portrait: Elara Spatial.
“My advice for founders is to try to create a minimum viable product quickly”Henriette Fleischmann · MIT News, 2023

A smaller promise that travels further

Elara currently says Lumasite handles interior water damage at any severity, with other perils on its roadmap. Policyholder capture works best across two or three rooms; larger losses usually involve an adjuster, inspector, or contractor collecting the photographs. A photograph of visible damage cannot, by itself, establish everything concealed behind a wall. Remote capture has a scope, even when the software is quick.

Alternatives solve different portions of the problem. A conventional field inspection brings a specialist to the property. Handdii connects insurers and customers with repair contractors. Estimating platforms provide the pricing environment into which Hosta feeds measurements and documentation. Hosta’s distinctive bet is to make ordinary photographs productive within that existing chain.

For an insurer considering the approach, the copyable move is specific: choose a defined claim type, keep capture simple, connect the output to existing tools, and measure the effect on the whole workflow. Elara says its rollout reports cycle time, first-pass rate, and adoption. A fast model matters most when the adjuster can use it and the family can move forward. The room was never the only thing that needed reconstructing.