{"event":{"id":"evt-hist-phase31-anthropic-haiku55-release","dedupe_key":"small_frontier_model_release:2026-10-07:anthropic-releases-claude-haiku-5-5","event_type":"small_frontier_model_release","title":"Anthropic releases Claude Haiku 5.5","summary":"Official Oct 7 product introduction and availability; vendor price/quality comparisons are vendor claims, not independently established universal performance.","occurred_at":"2026-10-07T00:00:00.000Z","published_at":"2026-10-07T00:00:00.000Z","observed_at":"2026-10-18T10:29:00.000Z","reconstructed_at":"2026-10-18T10:29:00.000Z","ingest_type":"historical_backfill","locations":null,"status":"verified","confidence":0.88,"metadata":{"evidence_only":1,"global_novelty_unproven":1,"independent_outcomes_unproven":1,"original_index_position":1120},"created_at":"2026-10-19T05:59:00.176Z","updated_at":"2026-10-19T05:59:00.176Z"},"artifacts":[{"id":"art-hist-phase31-anthropic-haiku55-release","dedupe_key":"868f2c1da04c3ca28cc92e37b7590c9a1553ba5cb54d4a2417fb445f0d3fad36","canonical_url":"https://www.anthropic.com/claude-haiku-5-5","evidence_locator":"","artifact_type":"original_publication","title":"Anthropic releases Claude Haiku 5.5","summary":"","creator_entities":[],"released_at":"2026-10-07T00:00:00.000Z","content_hash":null,"metadata":[],"created_at":"2026-10-19T05:59:00.176Z","updated_at":"2026-10-19T05:59:00.176Z","relation":"documented_by"}],"signals":[]}