{"event":{"id":"evt-2025q3-gpt-oss","dedupe_key":"historical_material_change:2025-08-05:openai-releases-gpt-oss-weights","event_type":"historical_material_change","title":"OpenAI releases gpt-oss weights","summary":"Two reasoning model weight releases become available under Apache 2.0.","occurred_at":"2025-08-05T00:00:00.000Z","published_at":"2025-08-05T00:00:00.000Z","observed_at":"2026-10-10T06:24:42.000Z","reconstructed_at":"2026-10-10T06:24:42.000Z","ingest_type":"live_world_scan","locations":null,"status":"verified","confidence":0.96,"metadata":{"what_happened_at_time":"Two reasoning model weight releases become available under Apache 2.0.","what_must_not_be_inferred":"Open weights do not imply publication of the full training data or complete reproducible training pipeline.","availability_status":"open_weight_release","affected_layers":["layer-models","layer-open-source"],"epistemic_status":"observed_fact","reported_capabilities_are_actor_claims":true,"time_precision":"day"},"created_at":"2026-10-10T08:31:22.779Z","updated_at":"2026-10-10T08:31:22.779Z"},"artifacts":[{"id":"art-2025q3-gpt-oss","dedupe_key":"2bdfe73484bbebcb678955b8b8f99a14793e672b1b1b479a22135e942a470cf8","canonical_url":"https://openai.com/index/introducing-gpt-oss/","evidence_locator":"","artifact_type":"official_announcement","title":"OpenAI releases gpt-oss weights","summary":"Two reasoning model weight releases become available under Apache 2.0.","creator_entities":["OpenAI"],"released_at":"2025-08-05T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2025-Q3","availability_status":"open_weight_release"},"created_at":"2026-10-10T08:31:22.771Z","updated_at":"2026-10-10T08:31:22.771Z","relation":"documented_by"}],"signals":[{"id":"sig-2025q3-gpt-oss","statement":"Two reasoning model weight releases become available under Apache 2.0. Open weights do not imply publication of the full training data or complete reproducible training pipeline.","signal_type":"historical_layer_delta","direction":"increasing","confidence":0.9,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-10T06:24:42.000Z","created_at":"2026-10-10T08:31:22.786Z","updated_at":"2026-10-10T08:31:22.786Z"}]}