Claude 2.0
Claude 2 is a large language model by Anthropic released on July 11, 2023.
The model was announced alongside the Claude.ai app.1
Footnotes
Claude 2 is offline since July 21, 2025.
Anthropic
Claude 2 was accessible via the Anthropic API for 741 days.1
Timeline
- 2023-07-11: Active
- 2023-11-21: Legacy (Claude 2.1 launch)
- 2025-01-21: Deprecated
- 2025-07-21: Retired
Post-deployment report
No post-deployment report has been published as of July 5, 2026.
External links
Footnotes
-
Model deprecations (Claude Platform Docs, retrieved July 3, 2026) ↩
Claude 2’s base model was trained on internet data collected up to early 2023. Claude 2.1 was trained from the same base model.1
In July 2023, Anthropic published evaluations comparing Claude 2.0, Claude 1.3, Instant 1.1, and Claude 1.3 Helpful-only.1
Footnotes
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Model Card and Evaluations for Claude Models (Anthropic, Jul 8, 2023) ↩ ↩2