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arcanemachine/claude-model-list.md

Created May 14, 2026 03:26
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Claude model list
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claude-model-list.md

Claude Model Reference

Last updated: April 30, 2026

Currently Active Models

Name Model ID (Date-stamped) Alias Released Active Support Until
Claude Opus 4.7 claude-opus-4-7 claude-opus-4-7 Apr 16, 2026 Apr 16, 2027
Claude Sonnet 4.6 claude-sonnet-4-6 claude-sonnet-4-6 Feb 17, 2026 Feb 17, 2027
Claude Opus 4.6 claude-opus-4-6 claude-opus-4-6 Feb 5, 2026 Feb 5, 2027
Claude Opus 4.5 claude-opus-4-5-20251101 claude-opus-4-5 Nov 24, 2025 Nov 24, 2026
Claude Haiku 4.5 claude-haiku-4-5-20251001 claude-haiku-4-5 Oct 15, 2025 Oct 15, 2026
Claude Sonnet 4.5 claude-sonnet-4-5-20250929 claude-sonnet-4-5 Sep 29, 2025 Sep 29, 2026
Claude Opus 4.1 claude-opus-4-1-20250805 claude-opus-4-1 Aug 5, 2025 Aug 5, 2026

Deprecated Models (Still Accessible)

Name Model ID (Date-stamped) Alias Released Deprecated Retiring Successor
Claude Opus 4.0 claude-opus-4-20250514 claude-opus-4-0 May 22, 2025 Apr 14, 2026 Jun 15, 2026 claude-opus-4-7
Claude Sonnet 4.0 claude-sonnet-4-20250514 claude-sonnet-4-0 May 22, 2025 Apr 14, 2026 Jun 15, 2026 claude-sonnet-4-6

Retired Models (No Longer Available)

Claude 3.x Series

Name Model ID Released Deprecated Retired Successor
Claude Sonnet 3.7 claude-3-7-sonnet-20250219 Feb 24, 2025 Oct 28, 2025 Feb 19, 2026 claude-sonnet-4-6
Claude Haiku 3.5 claude-3-5-haiku-20241022 Oct 22, 2024 Dec 19, 2025 Feb 19, 2026 claude-haiku-4-5
Claude Sonnet 3.5 v2 claude-3-5-sonnet-20241022 Oct 22, 2024 Aug 13, 2025 Oct 28, 2025 claude-sonnet-4-6
Claude Sonnet 3.5 claude-3-5-sonnet-20240620 Jun 21, 2024 Aug 13, 2025 Oct 28, 2025 claude-sonnet-4-6
Claude Haiku 3 claude-3-haiku-20240307 Mar 13, 2024 Feb 19, 2026 Apr 20, 2026 claude-haiku-4-5
Claude Opus 3 claude-3-opus-20240229 Mar 4, 2024 Jun 30, 2025 Jan 5, 2026 claude-opus-4-7
Claude Sonnet 3 claude-3-sonnet-20240229 Mar 4, 2024 Jan 21, 2025 Jul 21, 2025 claude-sonnet-4-6

Claude 2.x Series

Name Model ID Released Deprecated Retired Successor
Claude 2.1 claude-2.1 Nov 21, 2023 Jan 21, 2025 Jul 21, 2025 claude-opus-4-7
Claude 2.0 claude-2.0 Jul 11, 2023 Jan 21, 2025 Jul 21, 2025 claude-opus-4-7

Claude 1.x & Instant Series

Name Model ID Released Deprecated Retired Successor
Claude Instant 1.2 claude-instant-1.2 Aug 9, 2023 Nov 6, 2024 Nov 6, 2024 claude-haiku-4-5
Claude 1.3 claude-1.3 Apr 18, 2023 Sep 4, 2024 Nov 6, 2024 claude-haiku-4-5
Claude Instant 1.1 claude-instant-1.1 Mar 31, 2023 Nov 6, 2024 Nov 6, 2024 claude-haiku-4-5
Claude 1.2 claude-1.2 Mar 14, 2023 Sep 4, 2024 Nov 6, 2024 claude-haiku-4-5
Claude 1.1 claude-1.1 Mar 14, 2023 Sep 4, 2024 Nov 6, 2024 claude-haiku-4-5
Claude Instant 1.0 claude-instant-1.0 Mar 14, 2023 Nov 6, 2024 Nov 6, 2024 claude-haiku-4-5
Claude 1.0 claude-1.0 Mar 14, 2023 Sep 4, 2024 Nov 6, 2024 claude-haiku-4-5

Cloud Provider Model IDs

Model AWS Bedrock GCP Vertex AI
Claude Opus 4.5 anthropic.claude-opus-4-5-20251101-v1:0 claude-opus-4-5@20251101
Claude Haiku 4.5 anthropic.claude-haiku-4-5-20251001-v1:0 claude-haiku-4-5@20251001
Claude Sonnet 4.5 anthropic.claude-sonnet-4-5-20250929-v1:0 claude-sonnet-4-5@20250929
Claude Opus 4.1 anthropic.claude-opus-4-1-20250805-v1:0 claude-opus-4-1@20250805

Model Lifecycle Policy

  • Active: Fully supported, recommended for use
  • Deprecated: Still accessible but will be retired; migrate to successor
  • Retired: No longer available via API

Anthropic provides at least 60 days notice before retiring publicly released models.

Sources

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