{"citations":{"source_mix":{"company_owned":97,"independent":70,"unclear":16},"sources_referenced_by_questions":0,"support_mix":{"direct":143,"partial":31},"total_sources":183,"unique_domain_count":55},"claims":[{"claim_id":"claim-001","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platforms_analyzed","qualifier":"valid included platform responses","subject":"Best Countertop Fabricators and Installers for Quartz and Granite","unit":"platforms","value":7},{"claim_id":"claim-002","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","kimi"],"predicate":"final_consensus_rank","qualifier":"stone countertop fabrication","subject":"International Stoneworks","unit":"rank","value":1},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","kimi"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"International Stoneworks","unit":"platforms","value":2},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-10-02","platform_support":["deepseek","openai"],"predicate":"final_consensus_rank","qualifier":"stone countertop fabrication","subject":"Cosentino","unit":"rank","value":2},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-10-02","platform_support":["deepseek","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Cosentino","unit":"platforms","value":2},{"claim_id":"claim-006","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","kimi"],"predicate":"final_consensus_rank","qualifier":"stone countertop fabrication","subject":"AbsoluteGM","unit":"rank","value":3},{"claim_id":"claim-007","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","kimi"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"AbsoluteGM","unit":"platforms","value":2},{"claim_id":"claim-008","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","perplexity"],"predicate":"final_consensus_rank","qualifier":"stone countertop fabrication","subject":"Palmetto Surfacing","unit":"rank","value":4},{"claim_id":"claim-009","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Palmetto Surfacing","unit":"platforms","value":2},{"claim_id":"claim-010","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","google"],"predicate":"final_consensus_rank","qualifier":"stone countertop fabrication","subject":"Precision Countertops","unit":"rank","value":6},{"claim_id":"claim-011","confidence":"verified","observed_at":"2026-10-02","platform_support":["anthropic","google"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Precision Countertops","unit":"platforms","value":2}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":2.5,"best_rank":1,"entity_id":"entity-001","entity_type":"company","final_rank":1,"name":"International Stoneworks","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":3,"best_rank":2,"entity_id":"entity-002","entity_type":"company","final_rank":2,"name":"Cosentino","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":4,"best_rank":3,"entity_id":"entity-003","entity_type":"company","final_rank":3,"name":"AbsoluteGM","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":5,"best_rank":2,"entity_id":"entity-004","entity_type":"company","final_rank":4,"name":"Palmetto Surfacing","platform_mentions":2,"platform_share":0.2857142857142857},{"average_rank":6.5,"best_rank":4,"entity_id":"entity-005","entity_type":"company","final_rank":6,"name":"Precision Countertops","platform_mentions":2,"platform_share":0.2857142857142857}],"identity":{"dataset_url":"https://homeimprovementconsensusindex.com/datasets/kitchen-remodeling/stone-countertop-fabrication.json","page_url":"https://homeimprovementconsensusindex.com/kitchen-remodeling/stone-countertop-fabrication","report_type":"best_of_index","study_id":"HICI-STUDY-5C760CF60DD0","title":"Best Countertop Fabricators and Installers for Quartz and Granite (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":"Home Improvement Consensus 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":"2026-10-02 13:52:28.702692+00","research_date":"2026-10-02","source_snapshot_sha256":"51fd9c6923d50e08d354a28455e1983dce031ef23a26bb9b18eb8eb63763828f","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":48,"qualified_finalists":5,"ranking_unit":"Kitchen remodeling contractor, design-build firm, or cabinet supplier"},"schema_version":4,"summary":"International Stoneworks is the consensus leader for stone countertop fabrication in this 7-platform AI study, named by 2 of 7 platforms with an average listed position of 2.5 and a best position of 1. Cosentino is the strongest alternative for buyers who want a branded surface with a long material warranty and a Costco referral channel; AbsoluteGM is the strongest alternative for Seattle-area buyers who want digital templating and in-house CNC fabrication; Palmetto Surfacing serves Charleston-area buyers; Precision Countertops serves Oregon and southwest Washington. The study sent one…","target_buyer":"A homeowner replacing worktops who needs accurate templating, seam placement and installation on existing or new cabinetry.","topic":{"base_category":"Kitchen Remodeling","category_criteria":["templating accuracy","slab selection and sourcing","seam and edge quality","project scope handled","design service quality","cabinetry and material sourcing","timeline reliability","written estimate clarity","workmanship warranty","customer review strength"],"geography":"United States","slug":"best-countertop-fabricators-and-installers-for-quartz-and-granite","title":"Best Countertop Fabricators and Installers for Quartz and Granite","use_case":"stone countertop fabrication"}}