{"citations":{"source_mix":{"company_owned":53,"independent":44,"unclear":4},"sources_referenced_by_questions":0,"support_mix":{"direct":76,"partial":23},"total_sources":101,"unique_domain_count":43},"claims":[{"claim_id":"claim-001","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platforms_analyzed","qualifier":"valid included platform responses","subject":"Best Walk-In Tubs for Wheelchair Users","unit":"platforms","value":7},{"claim_id":"claim-002","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","deepseek","google","grok","kimi","openai"],"predicate":"final_consensus_rank","qualifier":"Wheelchair Transfer & Roll-In Access","subject":"American Tubs","unit":"rank","value":2},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","deepseek","google","grok","kimi","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"American Tubs","unit":"platforms","value":6},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","google","openai"],"predicate":"final_consensus_rank","qualifier":"Wheelchair Transfer & Roll-In Access","subject":"American Standard Gelcoat Premium Series 30x52","unit":"rank","value":3},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","google","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"American Standard Gelcoat Premium Series 30x52","unit":"platforms","value":3},{"claim_id":"claim-006","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","deepseek","kimi"],"predicate":"final_consensus_rank","qualifier":"Wheelchair Transfer & Roll-In Access","subject":"Freedom Showers Freedom Transfer32","unit":"rank","value":4},{"claim_id":"claim-007","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","deepseek","kimi"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Freedom Showers Freedom Transfer32","unit":"platforms","value":3},{"claim_id":"claim-008","confidence":"verified","observed_at":"2026-09-26","platform_support":["deepseek","perplexity"],"predicate":"final_consensus_rank","qualifier":"Wheelchair Transfer & Roll-In Access","subject":"Aging Safely Baths 2953WCA Series Walk-In Tub","unit":"rank","value":5},{"claim_id":"claim-009","confidence":"verified","observed_at":"2026-09-26","platform_support":["deepseek","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Aging Safely Baths 2953WCA Series Walk-In Tub","unit":"platforms","value":2}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":3.8333333333333335,"best_rank":2,"entity_id":"entity-001","entity_type":"company","final_rank":2,"name":"American Tubs","platform_mentions":6,"platform_share":0.8571428571428571},{"average_rank":4.333333333333333,"best_rank":3,"entity_id":"entity-002","entity_type":"company","final_rank":3,"name":"American Standard Gelcoat Premium Series 30x52","platform_mentions":3,"platform_share":0.42857142857142855},{"average_rank":4.666666666666667,"best_rank":2,"entity_id":"entity-003","entity_type":"company","final_rank":4,"name":"Freedom Showers Freedom Transfer32","platform_mentions":3,"platform_share":0.42857142857142855},{"average_rank":7,"best_rank":4,"entity_id":"entity-004","entity_type":"company","final_rank":5,"name":"Aging Safely Baths 2953WCA Series Walk-In Tub","platform_mentions":2,"platform_share":0.2857142857142857}],"identity":{"dataset_url":"https://aginginplaceindex.com/datasets/walk-in-tubs/wheelchair-transfer-roll-in-access.json","page_url":"https://aginginplaceindex.com/walk-in-tubs/wheelchair-transfer-roll-in-access","report_type":"best_of_index","study_id":"AIPI-STUDY-D0A2DD0F5DBD","title":"Best Walk-In Tubs for Wheelchair Users (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":"2026-09-26 12:36:23.729903+00","research_date":"2026-09-26","source_snapshot_sha256":"079794d916a08da4b74d209333abae1678a11c00ea867019658e65f6fd44e3c5","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":14,"qualified_finalists":4,"ranking_unit":"Walk-in tub model and manufacturer"},"schema_version":4,"summary":"American Tubs leads the September 2026 consensus ranking for Wheelchair Transfer & Roll-In Access, followed by American Standard Gelcoat Premium Series 30x52 and Freedom Showers Freedom Transfer32. The current study includes 7 valid AI-platform responses and 4 qualifying entities. Compared with August 2026, the leader changed. The current list added American Standard Gelcoat Premium Series 30x52, Freedom Showers Freedom Transfer32, and Aging Safely Baths 2953WCA Series Walk-In Tub and removed Ella's Bubbles, American Standard Safety Tubs SSOD5230, Meditub, Kohler Walk-In Bath, Safe Step –…","target_buyer":"Wheelchair users and caregivers requiring outward-opening doors for seamless lateral seated transfers","topic":{"base_category":"Walk-in tubs","category_criteria":["Outward-opening door width","transfer bench design","accessible water control placement","weight capacity","grab bar stability","warranty terms"],"geography":"United States","slug":"best-walk-in-tubs-for-wheelchair-users","title":"Best Walk-In Tubs for Wheelchair Users","use_case":"Wheelchair Transfer & Roll-In Access"}}