{"event":{"id":"evt-hist-20260928-elevenlabs-eleven-v4-release","dedupe_key":"audio_model_release:2026-09-28:elevenlabs-launches-eleven-v4-and-eleven-v4-turbo","event_type":"audio_model_release","title":"ElevenLabs launches Eleven v4 and Eleven v4 Turbo","summary":"ElevenLabs introduced Eleven v4 and Eleven v4 Turbo on September 28, 2026, confirmed by its dated product changelog. Relative speech quality, 75 percent preference statistics and latency numbers are issuer-reported performance claims; the original article was updated October 12.","occurred_at":"2026-09-28T00:00:00.000Z","published_at":"2026-09-28T00:00:00.000Z","observed_at":"2026-10-18T06:11:00.000Z","reconstructed_at":"2026-10-18T06:11:00.000Z","ingest_type":"historical_backfill","locations":null,"status":"verified","confidence":0.92,"metadata":{"bounded_canonical_search":1,"date_precision":"day","evidence_only":1,"external_postcutoff_id":"2026-09-28-elevenlabs-eleven-v4","global_novelty_not_proven":1,"realized_outcomes_not_inferred":1},"created_at":"2026-10-18T06:52:25.234Z","updated_at":"2026-10-18T06:52:25.234Z"},"artifacts":[{"id":"art-hist-20260928-elevenlabs-eleven-v4-release","dedupe_key":"581bea52b05fbbd5f7f869c131eb399a331dbcd39f2fe0afdb7ffe6473b73ace","canonical_url":"https://elevenlabs.io/blog/eleven-v4","evidence_locator":"","artifact_type":"first_party_publication","title":"ElevenLabs launches Eleven v4 and Eleven v4 Turbo","summary":"","creator_entities":[],"released_at":"2026-09-28T00:00:00.000Z","content_hash":null,"metadata":[],"created_at":"2026-10-18T06:52:25.234Z","updated_at":"2026-10-18T06:52:25.234Z","relation":"documented_by"}],"signals":[]}