{"event":{"id":"evt-2024q3-qwen25","dedupe_key":"historical_material_change:2024-09-19:qwen2-5-releases-general-coding-and-mathematics-weights","event_type":"historical_material_change","title":"Qwen2.5 releases general, coding and mathematics weights","summary":"Qwen released model families spanning general language, coding and mathematics with downloadable weights and inference integrations.","occurred_at":"2024-09-19T00:00:00.000Z","published_at":"2024-09-19T00:00:00.000Z","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":"Qwen released model families spanning general language, coding and mathematics with downloadable weights and inference integrations.","what_must_not_be_inferred":"License exceptions vary by model; vendor benchmark leadership is not an independently verified fact.","availability_status":"released","affected_layers":["layer-models","layer-open-source","layer-software"],"epistemic_status":"observed_fact"},"created_at":"2026-10-10T07:49:15.914Z","updated_at":"2026-10-10T07:49:15.914Z"},"artifacts":[{"id":"art-2024q3-qwen25","dedupe_key":"f7377f03c04a147ee02bd6096a20c7c87afa6e472d783f1bda33d857d9926f1d","canonical_url":"https://qwenlm.github.io/blog/qwen2.5/","evidence_locator":"","artifact_type":"official_announcement","title":"Qwen2.5 releases general, coding and mathematics weights","summary":"Qwen released model families spanning general language, coding and mathematics with downloadable weights and inference integrations.","creator_entities":["Qwen Team"],"released_at":"2024-09-19T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2024-Q3"},"created_at":"2026-10-10T07:49:15.904Z","updated_at":"2026-10-10T07:49:15.904Z","relation":"documented_by"}],"signals":[{"id":"sig-2024q3-models","statement":"Licensed open-weight scale, specialized families and restricted reasoning previews diversified model development; vendor parity claims remain unverified.","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":"2026-10-10T07:49:15.914Z","updated_at":"2026-10-10T07:49:15.914Z"},{"id":"sig-2024q3-open-source","statement":"Downloadable model ecosystems expanded, while custom, noncommercial and permissive licenses remained materially different.","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":"2026-10-10T07:49:15.915Z","updated_at":"2026-10-10T07:49:15.915Z"}]}