Architecture comparison

Compass vs Zillow

Zillow runs closer to the foundational model (Native (own / self-hosted weights)) than Compass (Direct API). Shared foundation: OpenAI · GPT (highlighted).

Compass

Proptech

Proximity

Direct API

Models

OpenAI · GPT

Cloud · datastore

AWSPostgreSQL

Compliance

SOC 2

Architecture

Real-estate brokerage platform; agent AI tools on OpenAI over listing/CRM data.

Zillow

Proptech

Proximity

Native (own / self-hosted weights)

Models

proprietary / self-built modelsOpenAI · GPT

Cloud · datastore

AWSownSQL Server

Compliance

SOC 2

Architecture

Real-estate marketplace; the Zestimate is large in-house valuation ML; natural-language search on OpenAI.

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