{"citations":{"source_mix":{"company_owned":17,"independent":13,"unclear":4},"sources_referenced_by_questions":0,"support_mix":{"direct":24,"partial":8},"total_sources":34,"unique_domain_count":23},"claims":[{"claim_id":"claim-001","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platforms_analyzed","qualifier":"valid included platform responses","subject":"Best Luxury Walk-In Tubs","unit":"platforms","value":7},{"claim_id":"claim-002","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","kimi","openai","perplexity"],"predicate":"final_consensus_rank","qualifier":"Premium Spa & Comfort Features","subject":"American Standard Acrylic Luxury Series 28x48 Walk-In Tub","unit":"rank","value":2},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","kimi","openai","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"American Standard Acrylic Luxury Series 28x48 Walk-In Tub","unit":"platforms","value":6},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-27","platform_support":["grok"],"predicate":"fit_rating_count","qualifier":"strong","subject":"American Standard Acrylic Luxury Series 28x48 Walk-In Tub","unit":"platforms","value":1},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-09-27","platform_support":["openai","anthropic","deepseek","google"],"predicate":"fit_rating_count","qualifier":"good","subject":"American Standard Acrylic Luxury Series 28x48 Walk-In Tub","unit":"platforms","value":4},{"claim_id":"claim-006","confidence":"verified","observed_at":"2026-09-27","platform_support":["perplexity"],"predicate":"fit_rating_count","qualifier":"mixed","subject":"American Standard Acrylic Luxury Series 28x48 Walk-In Tub","unit":"platforms","value":1},{"claim_id":"claim-007","confidence":"verified","observed_at":"2026-09-27","platform_support":["kimi"],"predicate":"fit_rating_count","qualifier":"uncertain","subject":"American Standard Acrylic Luxury Series 28x48 Walk-In Tub","unit":"platforms","value":1}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":2.8333333333333335,"best_rank":1,"entity_id":"entity-001","entity_type":"company","final_rank":2,"name":"American Standard Acrylic Luxury Series 28x48 Walk-In Tub","platform_mentions":6,"platform_share":0.8571428571428571}],"identity":{"dataset_url":"https://aginginplaceindex.com/datasets/walk-in-tubs/premium-spa-comfort-features/american-standard-acrylic-luxury-series-28x48-walk-in-tub.json","page_url":"https://aginginplaceindex.com/walk-in-tubs/premium-spa-comfort-features/american-standard-acrylic-luxury-series-28x48-walk-in-tub","report_type":"fit_review","study_id":"AIPI-STUDY-24B084CBB095","title":"American Standard Acrylic Luxury Series 28x48 Walk-In Tub Review for Premium Spa & Comfort Features"},"limitations":["Use the run researchdate as the study date. Platform-reported dates are provenance metadata and do not independently prove freshness.","All included platforms evaluated fit, but platformmentions counts only platforms that named the entity during ranking discovery.","Do not resolve conflicting product names, pricing, or capabilities by guessing; describe the conflict and tell buyers what to verify.","The supplied URLs were collected from platform responses and were not independently validated by the writer stage.","Company-owned citations materially outnumber independent citations; do not describe company claims as independently verified.","Platform-reported research dates differ from the authoritative run date; disclose this as a methodology limitation.","The deterministic identity audit contains qualification notes that must be disclosed where relevant.","Citations are platform-reported evidence, not independently verified facts. No-search model claims require explicit verification before being described as current facts."],"methodology":{"fit_rating_contract":["strong","good","mixed","weak","uncertain"],"included_valid_platform_count":7,"maximum_finalists":10,"minimum_mentions":2,"name":"Aging in Place Index cross-platform AI consensus analysis","platforms_included":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"platforms_queried":["openai","anthropic","deepseek","grok","perplexity","kimi","google"],"stages":["ranking_discovery","fit_assessment","normalization","editorial_synthesis"],"version":"alias-table-1"},"provenance":{"generated_at":"2026-09-27 20:29:10.86739+00","research_date":"2026-09-27","source_snapshot_sha256":"f41edaf218ee6055fb4b2ccd792a9470ce3bfe23a9361dd3007fa5e50c36b109","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":23,"qualified_finalists":6,"ranking_unit":"Luxury walk-in tub model and manufacturer"},"schema_version":4,"summary":"The American Standard Acrylic Luxury Series 28x48 Walk-In Tub is a good fit for Premium Spa & Comfort Features, with one major caveat. Six of seven platforms named it during the ranking stage, and five of those six rated it a good or strong fit. Its strongest advantage is verified dual hydrotherapy: a 13-jet whirlpool with in-line heater plus a 26-jet Air Spa with heated blower, wrapped in acrylic with a 15-year shell warranty. The main limitation is configuration uncertainty: the exact 28x48 SKU's chromatherapy and aromatherapy availability is unconfirmed, the faucet is excluded on at least…","target_buyer":"Homeowners willing to pay more for premium therapy features, high-end fixtures, comfort upgrades, and a polished bathroom finish","topic":{"base_category":"Walk-in tubs","category_criteria":["Hydrotherapy and air jet combination","chromotherapy","aromatherapy","premium fixtures","heated surfaces","design finish options","warranty coverage","installed price"],"geography":"United States","slug":"best-luxury-walk-in-tubs","title":"Best Luxury Walk-In Tubs","use_case":"Premium Spa & Comfort Features"}}