{"event":{"id":"evt-hist-20260920-qwen-image21","dedupe_key":"open_weight_model_release:2026-09-20:qwen-publishes-open-source-qwen-image-2-1-model-release","event_type":"open_weight_model_release","title":"Qwen publishes open-source Qwen-Image-2.1 model release","summary":"Qwen publicly announced open-sourcing Qwen-Image-2.1 on September 20, 2026, a compact image-generation and editing model with native RGBA transparency. Architecture and benchmarks are publisher-reported, not independent proof of quality or downstream adoption.","occurred_at":"2026-09-20T00:00:00.000Z","published_at":"2026-09-20T00:00:00.000Z","observed_at":"2026-10-17T19:50:00.000Z","reconstructed_at":"2026-10-17T19:50:00.000Z","ingest_type":"historical_backfill","locations":null,"status":"verified","confidence":0.92,"metadata":{"date_precision":"day","evidence_only":1,"external_postcutoff_id":"2026-09-20-qwen-image-2-1","full_canonical_negative_coverage_unproven":1,"new_relation_onset":0,"previews_and_projected_outcomes_not_achieved":1},"created_at":"2026-10-17T20:18:27.698Z","updated_at":"2026-10-17T20:18:27.698Z"},"artifacts":[{"id":"art-hist-20260920-qwen-image21","dedupe_key":"bff499fb53d99f1f9c7e560e9bae5946d1400312fd6064b75be1961dbc883b0c","canonical_url":"https://qwen.ai/blog?id=qwen-image-2.1","evidence_locator":"","artifact_type":"publisher_publication","title":"Qwen publishes open-source Qwen-Image-2.1 model release","summary":"","creator_entities":[],"released_at":"2026-09-20T00:00:00.000Z","content_hash":null,"metadata":[],"created_at":"2026-10-17T20:18:27.698Z","updated_at":"2026-10-17T20:18:27.698Z","relation":"documented_by"}],"signals":[]}