{"citations":{"source_mix":{"company_owned":62,"independent":51,"unclear":5},"sources_referenced_by_questions":0,"support_mix":{"direct":87,"partial":26},"total_sources":118,"unique_domain_count":58},"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 Standing Stairlifts","unit":"platforms","value":7},{"claim_id":"claim-002","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"final_consensus_rank","qualifier":"Standing & Semi-Standing Stair Travel","subject":"Stannah Sadler","unit":"rank","value":1},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Stannah Sadler","unit":"platforms","value":7},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-27","platform_support":["deepseek","google","grok","openai"],"predicate":"final_consensus_rank","qualifier":"Standing & Semi-Standing Stair Travel","subject":"Acorn Stairlifts","unit":"rank","value":3},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-09-27","platform_support":["deepseek","google","grok","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Acorn Stairlifts","unit":"platforms","value":4},{"claim_id":"claim-006","confidence":"verified","observed_at":"2026-09-27","platform_support":["deepseek","kimi"],"predicate":"final_consensus_rank","qualifier":"Standing & Semi-Standing Stair Travel","subject":"Bruno Independent Living Aids","unit":"rank","value":4},{"claim_id":"claim-007","confidence":"verified","observed_at":"2026-09-27","platform_support":["deepseek","kimi"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Bruno Independent Living Aids","unit":"platforms","value":2},{"claim_id":"claim-008","confidence":"verified","observed_at":"2026-09-27","platform_support":["grok","kimi"],"predicate":"final_consensus_rank","qualifier":"Standing & Semi-Standing Stair Travel","subject":"Arrow Lift Custom Standing Stairlift","unit":"rank","value":5},{"claim_id":"claim-009","confidence":"verified","observed_at":"2026-09-27","platform_support":["grok","kimi"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Arrow Lift Custom Standing Stairlift","unit":"platforms","value":2}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":1.1428571428571428,"best_rank":1,"entity_id":"entity-001","entity_type":"company","final_rank":1,"name":"Stannah Sadler","platform_mentions":7,"platform_share":1},{"average_rank":2.75,"best_rank":1,"entity_id":"entity-002","entity_type":"company","final_rank":3,"name":"Acorn Stairlifts","platform_mentions":4,"platform_share":0.5714285714285714},{"average_rank":3,"best_rank":3,"entity_id":"entity-003","entity_type":"company","final_rank":4,"name":"Bruno Independent Living Aids","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":3.5,"best_rank":3,"entity_id":"entity-004","entity_type":"company","final_rank":5,"name":"Arrow Lift Custom Standing Stairlift","platform_mentions":2,"platform_share":0.2857142857142857}],"identity":{"dataset_url":"https://aginginplaceindex.com/datasets/stairlifts/standing-semi-standing-stair-travel.json","page_url":"https://aginginplaceindex.com/stairlifts/standing-semi-standing-stair-travel","report_type":"best_of_index","study_id":"AIPI-STUDY-4103B65CECF9","title":"Best Standing Stairlifts (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 12:58:13.138702+00","research_date":"2026-09-27","source_snapshot_sha256":"4791882a3d9bd65d8f9aaa750933dcc758b4aac4c9f25fce1867931c3a02a292","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":11,"qualified_finalists":4,"ranking_unit":"Standing stairlift model and manufacturer"},"schema_version":4,"summary":"Stannah Sadler leads the September 2026 consensus ranking for Standing & Semi-Standing Stair Travel, followed by Acorn Stairlifts and Bruno Independent Living Aids. The current study includes 7 valid AI-platform responses and 4 qualifying entities. Compared with August 2026, the leader changed. The current list added Acorn Stairlifts and Bruno Independent Living Aids and removed Savaria Handicare 1000, Harmar SL600 Pinnacle Premium, and Bruno Stair Lift Dealer-Configured Alternative. This is an immediately preceding-month comparison. Rank movement measures changes in this collection of…","target_buyer":"Users who struggle to bend their knees or sit fully but can safely ride in a supported standing or semi-seated position","topic":{"base_category":"Stairlifts","category_criteria":["Standing support design","perch seat stability","safety harness or grab bar quality","minimum stair width","obstruction sensors","ride smoothness","weight capacity"],"geography":"United States","slug":"best-standing-stairlifts","title":"Best Standing Stairlifts","use_case":"Standing & Semi-Standing Stair Travel"}}