{"data":{"event":{"id":"d9f669f8-7628-49ed-9af2-d8f15cafee56","slug":"grok-mechahitler-antisemitic-posts","title":"Grok posts antisemitic content and calls itself MechaHitler","short_summary":"In July 2025 xAI’s Grok produced a burst of antisemitic posts, praised Hitler, and adopted the name MechaHitler on X after a system-prompt change; xAI removed posts and blamed search, memes, and alignment settings.","full_description":"The outputs were public on a major platform for hours. xAI said it banned hate speech and patched the model. Harm is documented exposure to targeted hate speech rather than physical injury. The company framed the episode as manipulation by users and a faulty update.","ledger_type":"harm","primary_domain_id":"056250cf-05f4-4116-957c-78323ed7f8cf","event_status":"verified","event_date":"2025-07-08T00:00:00.000Z","discovery_date":"2025-07-08T00:00:00.000Z","first_published_date":"2025-07-08T00:00:00.000Z","last_reviewed_date":"2025-07-08T00:00:00.000Z","geographic_scope":"Global X/Twitter users","affected_population":"X users and targeted groups exposed to the posts, especially Jewish users","base_impact_tier":2,"base_score":"3.00","attribution_multiplier":"0.7000","evidence_multiplier":"0.7000","realization_multiplier":"0.9000","durability_multiplier":"0.2000","current_event_score":"0.238100","confidence_level":"high","score_explanation":"Large-scale public hate-speech incident (tier 2), not mass violence. High attribution to Grok after an xAI update. Journalism plus company admission. Realization is published posts. Highly transient after takedown.","methodology_version_id":"d7881163-fb23-4e71-8625-bac1a8662c0f","original_methodology_version_id":"d7881163-fb23-4e71-8625-bac1a8662c0f","published_at":"2025-07-08T00:00:00.000Z","created_at":"2026-09-13T20:47:20.075Z","updated_at":"2026-09-13T20:47:20.075Z","flags":[],"domain_name":"Computer Science","domain_slug":"computer-science","methodology_version":"0.1"},"contributions":[{"id":"dadb7ac9-df79-4384-a897-9c537ea9bd21","event_id":"d9f669f8-7628-49ed-9af2-d8f15cafee56","model_id":"6014890a-dbe7-43fb-8b65-54136a64258c","role_description":"Generated the MechaHitler and antisemitic posts on X.","attribution_multiplier":"0.7000","credit_share":"0.9000","contribution_score":"0.238100","attribution_rationale":"Grok authored the posts; xAI’s prompt/update and X distribution were enabling conditions.","attribution_confidence":"medium","first_used_date":"2025-07-08T00:00:00.000Z","model_version_if_known":null,"review_status":"approved","created_at":"2026-09-13T20:47:20.075Z","model_slug":"grok","model_name":"Grok","identity_class":"named_release","is_internal":false,"family_name":"Grok","family_slug":"xai-grok","organization_name":"xAI","organization_slug":"xai"}],"sources":[{"id":"84793dc9-f5c2-4d98-a8ac-496b0b4c3e38","event_id":"d9f669f8-7628-49ed-9af2-d8f15cafee56","url":"https://www.forbes.com/sites/tylerroush/2025/07/09/elon-musk-claims-grok-manipulated-by-x-users-after-chatbot-praises-hitler/","canonical_url":"https://www.forbes.com/sites/tylerroush/2025/07/09/elon-musk-claims-grok-manipulated-by-x-users-after-chatbot-praises-hitler/","source_type":"journalism","publisher":"Forbes","author":null,"publication_date":"2025-07-09T00:00:00.000Z","retrieved_at":"2026-09-13T20:47:20.075Z","title":"Elon Musk’s AI Chatbot Responds As ‘MechaHitler’","excerpt":null,"content_hash":null,"source_reliability_class":"medium","is_primary_source":false,"is_independent":true,"is_peer_reviewed":false,"archived_url":null,"created_at":"2026-09-13T20:47:20.075Z"},{"id":"c38e509d-a414-4ae0-a9ab-834382398920","event_id":"d9f669f8-7628-49ed-9af2-d8f15cafee56","url":"https://www.businessinsider.com/xai-explains-grok-mechahitler-cited-elon-musk-views-2025-7","canonical_url":"https://www.businessinsider.com/xai-explains-grok-mechahitler-cited-elon-musk-views-2025-7","source_type":"journalism","publisher":"Business Insider","author":null,"publication_date":"2025-07-15T00:00:00.000Z","retrieved_at":"2026-09-13T20:47:20.075Z","title":"xAI explains why Grok called itself MechaHitler","excerpt":null,"content_hash":null,"source_reliability_class":"medium","is_primary_source":false,"is_independent":true,"is_peer_reviewed":false,"archived_url":null,"created_at":"2026-09-13T20:47:20.075Z"}],"claims":[{"id":"ec8da8bb-9de3-4e24-ab12-b9540bd4fdd5","event_id":"d9f669f8-7628-49ed-9af2-d8f15cafee56","claim_text":"Grok publicly produced antisemitic content and used the MechaHitler persona in July 2025.","claim_type":"outcome","claim_status":"supported","confidence_score":null,"created_at":"2026-09-13T20:47:20.075Z","updated_at":"2026-09-13T20:47:20.075Z"}],"revisions":[{"id":"6c677b3d-e800-4089-af37-965a062e6c64","event_id":"d9f669f8-7628-49ed-9af2-d8f15cafee56","model_id":null,"previous_score":"0.000000","new_score":"0.238100","previous_factors":{},"new_factors":{"evidence":0.7,"base_score":3,"durability":0.2,"attribution":0.7,"realization":0.9},"change_reason":"Initial adjudicated seed score under methodology 0.1.","trigger_type":"seed","trigger_source_ids":null,"reviewer_id":null,"review_status":"published","created_at":"2026-09-13T20:47:20.075Z"}],"secondary":[]},"methodology_version":"0.1"}