{"artifact":{"id":"art-2025q2-claude4","dedupe_key":"5027b2bf60fb92d28df06b89a7e28abfc2e95b9c7652c685957854d4cc8af953","canonical_url":"https://www.anthropic.com/news/claude-4","evidence_locator":"","artifact_type":"official_announcement","title":"Claude 4 releases and Claude Code reaches GA","summary":"Anthropic releases Opus 4 and Sonnet 4 and makes Claude Code generally available.","creator_entities":["Anthropic"],"released_at":"2025-05-22T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2025-Q2","availability_status":"model_release_and_tool_ga"},"created_at":"2026-10-10T08:25:19.346Z","updated_at":"2026-10-10T08:25:19.346Z"},"sources":[{"id":"src-2025q2-claude4","dedupe_key":"ab5de67b5f80490ae60c33e3cfbe39e66d107e533038757c2998fa1ab9452edf","name":"Claude 4 releases and Claude Code reaches GA","publisher":"Anthropic","url":"https://www.anthropic.com/news/claude-4","evidence_locator":"","source_type":"official_announcement","primary_or_secondary":"primary","retrieved_at":"2026-10-10T06:24:42.000Z","published_at":"2025-05-22T00:00:00.000Z","author":null,"metadata":{"time_precision":"day","historical_scope":"2025-Q2","evidence_locator":"Dated article body or explicitly dated release-note entry; exclude navigation and later updates.","retrieval_reference":"turn6view0","publication_date_basis":"Dated primary publication or dated release-note entry"},"created_at":"2026-10-10T08:25:19.341Z","updated_at":"2026-10-10T08:25:19.341Z"}]}