{"event":{"id":"evt-hist-20260827-deepmind-doubleblind-evals","dedupe_key":"double_blind_evaluation_pilot_announced:2026-08-27:google-deepmind-launches-privacy-preserving-double-blind-frontier-ai-evaluation-pilot","event_type":"double_blind_evaluation_pilot_announced","title":"Google DeepMind launches privacy-preserving double-blind frontier AI evaluation pilot","summary":"Google DeepMind announced a pilot of a double-blind evaluation process for a proprietary Gemini Flash Lite model using cryptographic confidential computing to keep evaluation prompts private from the model provider and proprietary weights private from evaluators. Partners include Singapore AI Safety Institute, OpenMined, AVERI and MLCommons. This is a publicly described pilot, not proof that all future evaluations are uncontaminated or independently trustworthy.","occurred_at":"2026-08-27T00:00:00.000Z","published_at":"2026-08-27T00:00:00.000Z","observed_at":"2026-10-17T17:20:00.000Z","reconstructed_at":"2026-10-17T17:20:00.000Z","ingest_type":"historical_backfill","locations":null,"status":"verified","confidence":0.94,"metadata":{"date_precision":"day","evidence_only":1,"external_postcutoff_id":"2026-08-27-deepmind-double-blind-ai-evaluations","global_canonical_absence_unproven":1,"milestone":"double_blind_evaluation_pilot_announced","new_relation_onset":0,"production_deployment_generalized":0,"provider_claims_not_independently_verified":1},"created_at":"2026-10-17T18:36:52.430Z","updated_at":"2026-10-17T18:36:52.430Z"},"artifacts":[{"id":"art-hist-20260827-deepmind-doubleblind-evals","dedupe_key":"fbecfdb7516b562627d7323fb897241fdcaa78229205410572ca9ec867a0ffb4","canonical_url":"https://deepmind.google/blog/piloting-the-worlds-first-double-blind-ai-evaluations/","evidence_locator":"","artifact_type":"official_publisher_publication","title":"Google DeepMind launches privacy-preserving double-blind frontier AI evaluation pilot","summary":"","creator_entities":[],"released_at":"2026-08-27T00:00:00.000Z","content_hash":null,"metadata":[],"created_at":"2026-10-17T18:36:52.429Z","updated_at":"2026-10-17T18:36:52.429Z","relation":"documented_by"}],"signals":[]}