{"event":{"id":"evt-2024q2-gemma2","dedupe_key":"historical_material_change:2024-06-27:gemma-2-models-become-available","event_type":"historical_material_change","title":"Gemma 2 models become available","summary":"Google released Gemma 2 9B and 27B model weights and developer integrations.","occurred_at":"2024-06-27T00:00:00.000Z","published_at":"2024-06-27T00:00:00.000Z","observed_at":"2026-10-09T19:12:47.000Z","reconstructed_at":"2026-10-09T19:12:47.000Z","ingest_type":"live_world_scan","locations":null,"status":"verified","confidence":0.97,"metadata":{"what_happened_at_time":"Google released Gemma 2 9B and 27B model weights and developer integrations.","what_must_not_be_inferred":"Model-size efficiency and benchmark superiority remain vendor claims; license restrictions still apply.","availability_status":"released","affected_layers":["layer-models","layer-open-source","layer-software"],"epistemic_status":"observed_fact"},"created_at":"2026-10-10T07:29:06.778Z","updated_at":"2026-10-10T07:29:06.778Z"},"artifacts":[{"id":"art-2024q2-gemma2","dedupe_key":"0711768649ab0f19e999fb4805380768466856908cdbc040313d4e32b1a893a5","canonical_url":"https://blog.google/innovation-and-ai/technology/developers-tools/google-gemma-2/","evidence_locator":"","artifact_type":"official_announcement","title":"Gemma 2 models become available","summary":"Google released Gemma 2 9B and 27B model weights and developer integrations.","creator_entities":["Google"],"released_at":"2024-06-27T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2024-Q2"},"created_at":"2026-10-10T07:29:06.769Z","updated_at":"2026-10-10T07:29:06.769Z","relation":"documented_by"}],"signals":[{"id":"sig-2024q2-open-source","statement":"Licensed language-model weights and open robot-policy tooling broadened developer adaptation; openness and deployment guarantees remained distinct.","signal_type":"historical_layer_delta","direction":"increasing","confidence":0.93,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-09T19:12:47.000Z","created_at":"2026-10-10T07:29:06.782Z","updated_at":"2026-10-10T07:29:06.782Z"}]}