{"schema_version":"kingy-change-evidence-v1","event":{"id":"ct-ed87138772ad5c4c627f663a","vendor":"Anthropic","category":"pricing","type":"documented_source_change","title":"Claude exact model identities and documented context/output documentation changed","source_id":"anthropic-models","source_url":"https://platform.claude.com/docs/en/models/overview.md","observed_at":"2026-10-21T20:55:09Z","last_unchanged_at":"2026-10-21T18:50:09Z","before_snapshot":"snap-823b636ebd257c68d1f74c69595d","after_snapshot":"snap-9d20a3b52bde88f5b794ac86b3fe","before_hash":"e45c1c8a21ca036c6638de55904540e3040c60d7547e322c3440c45faf1cb4fc","after_hash":"86d26d2b1f39ff97f686ebf6633042048886b26ece5a1214a4b8a3352a35f692","before_excerpt":"Once you've picked a model, [learn how to make your first API call](https://platform.claude.com/docs/en/get-started). To understand how model IDs, aliases, and snapshots work, see [Model IDs and versioning](https://platform.claude.com/docs/en/about-claude/models/model-ids-and-versions); for the reliable-knowledge and training-data cutoffs behind each model, see [Anthropic's Transparency Hub](https://www.anthropic.com/transparency). * **Output quality:** When migrating from a previous model generation, you may notice larger improvements in overall performance. If you're on Claude Opus 5 or earlier, see the [Claude Opus 5.5 migration guide](https://platform.claude.com/docs/en/models/opus-5-5/migration-guide). If you're ready to start exploring what Claude can do for you, dive in! Whether you're a …","after_excerpt":"Once you've picked a model, [learn how to make your first API call](https://platform.claude.com/docs/en/get-started). To understand how model IDs, aliases, and snapshots work, see [Model IDs and versioning](https://platform.claude.com/docs/en/about-claude/models/model-ids-and-versions); for the reliable-knowledge and training-data cutoffs behind each model, see Anthropic's [Transparency Hub](https://www.anthropic.com/transparency). * **Output quality:** When migrating from a previous model generation, you might notice larger improvements in overall performance. If you're on Claude Opus 5 or earlier, see the [Claude Opus 5.5 migration guide](https://platform.claude.com/docs/en/models/opus-5-5/migration-guide). Whether you're a developer looking to integrate Claude into your applications or a user wanting to experience …","status":"published","scope":"Published documentation; runtime behavior and legal interpretation not established.","before_capture":{"http_status":200,"resolved_url":"https://platform.claude.com/docs/en/models/overview.md","etag":"","last_modified":"","response_date":"Wed, 21 Oct 2026 18:50:09 GMT","source_id":"anthropic-models","source_url":"https://platform.claude.com/docs/en/models/overview.md","captured_at":"2026-10-21T18:50:09Z","raw_sha256":"e45c1c8a21ca036c6638de55904540e3040c60d7547e322c3440c45faf1cb4fc","normalized_sha256":"aeb568c17f0da31cf9f8169e0302f04c0cf237fb6db0ea80e394b74a97c36274","collector_version":"1.0.0","normalizer_version":"1.1","locale":"en-US","collection_region":"existing hosting; account-independent public request","id":"snap-823b636ebd257c68d1f74c69595d"},"after_capture":{"http_status":200,"resolved_url":"https://platform.claude.com/docs/en/models/overview.md","etag":"","last_modified":"","response_date":"Wed, 21 Oct 2026 20:55:09 GMT","source_id":"anthropic-models","source_url":"https://platform.claude.com/docs/en/models/overview.md","captured_at":"2026-10-21T20:55:09Z","raw_sha256":"86d26d2b1f39ff97f686ebf6633042048886b26ece5a1214a4b8a3352a35f692","normalized_sha256":"ce33f974514b940e8807b8ad4256a7a911683056c3aac71206e526b95ffefa27","collector_version":"1.0.0","normalizer_version":"1.1","locale":"en-US","collection_region":"existing hosting; account-independent public request","id":"snap-9d20a3b52bde88f5b794ac86b3fe"},"display_normalizer_version":"1.1","display_before_sha256":"aeb568c17f0da31cf9f8169e0302f04c0cf237fb6db0ea80e394b74a97c36274","display_after_sha256":"ce33f974514b940e8807b8ad4256a7a911683056c3aac71206e526b95ffefa27"},"content_scope":"Changed excerpts and retained capture metadata; complete raw responses archived privately"}