{"citations":{"source_mix":{"company_owned":153,"independent":136,"unclear":11},"sources_referenced_by_questions":0,"support_mix":{"direct":192,"partial":90},"total_sources":300,"unique_domain_count":109},"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 Walk-In Tubs With Hydrotherapy Jets","unit":"platforms","value":7},{"claim_id":"claim-002","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","grok","kimi","openai"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"Ella's Bubbles","unit":"rank","value":1},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","grok","kimi","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Ella's Bubbles","unit":"platforms","value":6},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","kimi","perplexity"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"American Standard Gelcoat Premium Series 48x28","unit":"rank","value":2},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","kimi","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"American Standard Gelcoat Premium Series 48x28","unit":"platforms","value":5},{"claim_id":"claim-006","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","openai","perplexity"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"Kohler Walk-In Bath","unit":"rank","value":3},{"claim_id":"claim-007","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","openai","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Kohler Walk-In Bath","unit":"platforms","value":5},{"claim_id":"claim-008","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","grok","kimi","perplexity"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"ANZZI 27x53 Left Drain Walk-In Tub with Jets","unit":"rank","value":4},{"claim_id":"claim-009","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","grok","kimi","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"ANZZI 27x53 Left Drain Walk-In Tub with Jets","unit":"platforms","value":4},{"claim_id":"claim-010","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","perplexity"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"Safe Step Walk-In Tub","unit":"rank","value":5},{"claim_id":"claim-011","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Safe Step Walk-In Tub","unit":"platforms","value":4},{"claim_id":"claim-012","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","google","perplexity"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"Meditub","unit":"rank","value":6},{"claim_id":"claim-013","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","google","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Meditub","unit":"platforms","value":3},{"claim_id":"claim-014","confidence":"verified","observed_at":"2026-09-27","platform_support":["kimi","perplexity"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"Independent Home Walk-In Tub with Hydrotherapy","unit":"rank","value":7},{"claim_id":"claim-015","confidence":"verified","observed_at":"2026-09-27","platform_support":["kimi","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Independent Home Walk-In Tub with Hydrotherapy","unit":"platforms","value":2},{"claim_id":"claim-016","confidence":"verified","observed_at":"2026-09-27","platform_support":["deepseek","perplexity"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"Jacuzzi Walk-In Bath with Whirlpool/Jets","unit":"rank","value":8},{"claim_id":"claim-017","confidence":"verified","observed_at":"2026-09-27","platform_support":["deepseek","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Jacuzzi Walk-In Bath with Whirlpool/Jets","unit":"platforms","value":2},{"claim_id":"claim-018","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","kimi"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"WalkIn Tubs of America Ultimate","unit":"rank","value":9},{"claim_id":"claim-019","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","kimi"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"WalkIn Tubs of America Ultimate","unit":"platforms","value":2},{"claim_id":"claim-020","confidence":"verified","observed_at":"2026-09-27","platform_support":["google","kimi"],"predicate":"final_consensus_rank","qualifier":"Hydrotherapy & Muscle Relief","subject":"Boca Walk-In Tubs","unit":"rank","value":10},{"claim_id":"claim-021","confidence":"verified","observed_at":"2026-09-27","platform_support":["google","kimi"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Boca Walk-In Tubs","unit":"platforms","value":2}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":1.3333333333333333,"best_rank":1,"entity_id":"entity-001","entity_type":"company","final_rank":1,"name":"Ella's Bubbles","platform_mentions":6,"platform_share":0.8571428571428571},{"average_rank":2.4,"best_rank":1,"entity_id":"entity-002","entity_type":"company","final_rank":2,"name":"American Standard Gelcoat Premium Series 48x28","platform_mentions":5,"platform_share":0.7142857142857143},{"average_rank":3,"best_rank":2,"entity_id":"entity-003","entity_type":"company","final_rank":3,"name":"Kohler Walk-In Bath","platform_mentions":5,"platform_share":0.7142857142857143},{"average_rank":3.75,"best_rank":1,"entity_id":"entity-004","entity_type":"company","final_rank":4,"name":"ANZZI 27x53 Left Drain Walk-In Tub with Jets","platform_mentions":4,"platform_share":0.5714285714285714},{"average_rank":3.75,"best_rank":3,"entity_id":"entity-005","entity_type":"company","final_rank":5,"name":"Safe Step Walk-In Tub","platform_mentions":4,"platform_share":0.5714285714285714},{"average_rank":7,"best_rank":6,"entity_id":"entity-006","entity_type":"company","final_rank":6,"name":"Meditub","platform_mentions":3,"platform_share":0.42857142857142855},{"average_rank":3,"best_rank":3,"entity_id":"entity-007","entity_type":"company","final_rank":7,"name":"Independent Home Walk-In Tub with Hydrotherapy","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":4.5,"best_rank":4,"entity_id":"entity-008","entity_type":"company","final_rank":8,"name":"Jacuzzi Walk-In Bath with Whirlpool/Jets","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":5.5,"best_rank":4,"entity_id":"entity-009","entity_type":"company","final_rank":9,"name":"WalkIn Tubs of America Ultimate","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":6.5,"best_rank":5,"entity_id":"entity-010","entity_type":"company","final_rank":10,"name":"Boca Walk-In Tubs","platform_mentions":2,"platform_share":0.2857142857142857}],"identity":{"dataset_url":"https://aginginplaceindex.com/datasets/walk-in-tubs/hydrotherapy-muscle-relief.json","page_url":"https://aginginplaceindex.com/walk-in-tubs/hydrotherapy-muscle-relief","report_type":"best_of_index","study_id":"AIPI-STUDY-C690794C898D","title":"Best Walk-In Tubs With Hydrotherapy Jets (2026)"},"limitations":["Exactly 7 platforms were included in this run: openai, anthropic, deepseek, grok, perplexity, kimi, google. The configured source value 7 is provenance only and must never be described as the number of platforms studied.","The finalrankingtable is the sole authority for rank, platform mentions, platform share, average rank, and best rank. Ignore any conflicting value embedded in a entity evidence bundle.","The Consensus Ranking table must contain exactly one row per finalrankingtable entity, in that order, using that exact entityname. Never split one ranked entity into two product, model, SKU, or product-line rows, and never add another ranking row for a brand already listed. Put recommended products or plans inside that entity's ranked section.","Platform mentions count only ranking-discovery mentions. Do not substitute the number of platforms that later completed a fit assessment.","Citation IDs inside each entity bundle are local to that entity. Consolidate sources by URL using the supplied source catalog.","The URLs were collected from platform responses and were not independently validated by either writer stage.","Each fitreviewurlorplaceholder is the final site-relative CMS path for that entity's review. Link the entity name to that exact path exactly once in its ranked prose section, outside tables and headings. Never replace it with a run ID, report ID, UUID, or local output path.","Use the exact entity-namespaced citation IDs from the source catalog (e.g. e1:); never transfer a citation between entities."],"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 09:47:04.796719+00","research_date":"2026-09-27","source_snapshot_sha256":"82ec0c809c46d0bf05716f73db6d8a4f94ec0d01c118b945220402a8e2ece4b1","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":21,"qualified_finalists":10,"ranking_unit":"Walk-in tub model and manufacturer"},"schema_version":4,"summary":"Ella's Bubbles leads the September 2026 consensus ranking for Hydrotherapy & Muscle Relief, followed by American Standard Gelcoat Premium Series 48x28 and Kohler Walk-In Bath. The current study includes 7 valid AI-platform responses and 10 qualifying entities. Compared with August 2026, the leader did not change. The current list added American Standard Gelcoat Premium Series 48x28, ANZZI 27x53 Left Drain Walk-In Tub with Jets, Meditub, Jacuzzi Walk-In Bath with Whirlpool/Jets, WalkIn Tubs of America Ultimate, and Boca Walk-In Tubs and removed American Standard Safety Tubs. This is an…","target_buyer":"Seniors with joint pain, stiffness, or circulation concerns who want targeted water-jet therapy in a safer seated bathing format","topic":{"base_category":"Walk-in tubs","category_criteria":["Hydrotherapy jet placement","water pressure adjustability","pump reliability","seat ergonomics","easy-reach controls","cleaning system","warranty coverage","installed price"],"geography":"United States","slug":"best-walk-in-tubs-with-hydrotherapy-jets","title":"Best Walk-In Tubs With Hydrotherapy Jets","use_case":"Hydrotherapy & Muscle Relief"}}