{"event":{"id":"evt-llama2-20230718","dedupe_key":"open_weight_model_release:2023-07-18:meta-releases-llama-2","event_type":"open_weight_model_release","title":"Meta releases Llama 2","summary":"Meta released Llama 2 weights/code for research and broad commercial use under its Community License.","occurred_at":"2023-07-18T00:00:00.000Z","published_at":"2023-07-18T00:00:00.000Z","observed_at":"2026-10-07T15:56:31.000Z","reconstructed_at":"2026-10-07T16:04:51.000Z","ingest_type":"live_world_scan","locations":null,"status":"verified","confidence":0.99,"metadata":{"actors":["Meta"],"what_happened_at_time":"Meta released Llama 2 weights/code for research and broad commercial use under its Community License.","evidence_at_time":"Meta's July 18 announcement describes Llama 2 as free for research and commercial use and distributed through a broad ecosystem; the accompanying license contains restrictions.","affected_layers":["layer-open-source","layer-models","layer-software","layer-research"],"change_kind":"open_weight_commercialization","q2_continuity":"Q2 formed a more complete open foundation-model stack through RedPajama, MPT and Falcon.","retrospective_inference":"Q3 moved open-weight model distribution further into mainstream commercial/cloud infrastructure.","uncertainty":"Community-license restrictions mean Llama 2 should not be represented as unrestricted open source."},"created_at":"2026-10-07T16:56:16.844Z","updated_at":"2026-10-07T16:56:16.844Z"},"artifacts":[{"id":"art-llama2-20230718","dedupe_key":"321cb35f2a24f0365bca3124b87e0b8e13614510aa0c5aa8bd5af81b37696c3c","canonical_url":"https://about.fb.com/news/2023/07/llama-2/","evidence_locator":"","artifact_type":"open_weight_model_release","title":"Llama 2","summary":"Llama 2 weights/code were released for research and broad commercial use under the Community License.","creator_entities":["Meta"],"released_at":"2023-07-18T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2023-Q3","license_note":"Commercial open-weight/community license; not unrestricted open source."},"created_at":"2026-10-07T16:56:16.826Z","updated_at":"2026-10-07T16:56:16.826Z","relation":"evidenced_by"}],"signals":[{"id":"sig-q3-open-weight-commercialization","statement":"Commercially usable open-weight models spread into cloud, local and model-hub ecosystems while licensing remained heterogeneous, including community-restricted and permissive Apache-2.0 releases.","signal_type":"open_weight_commercialization","direction":"increasing","confidence":0.98,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-07T16:04:51.000Z","created_at":"2026-10-07T16:56:16.859Z","updated_at":"2026-10-07T16:56:16.859Z"}]}