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/ Model Lifecycle · updated 2026-05-06
AI Model Deprecation Calendar
When each provider retires each model, with the recommended replacement and a source link to verify the announcement. Updated as new deprecations are published.
Anthropic (3 models)
| Model | Status | Announced | Deprecated | Sunset | Replacement | Source |
|---|---|---|---|---|---|---|
claude-instant-1.2 Claude Instant 1.2 Original cost-tier Claude. Replaced by the Claude 3 Haiku family. | Sunsetted | Apr 26, 2024 | Jul 21, 2024 | Jul 21, 2024 | claude-3-haiku-20240307 | announce |
claude-2.0 | Sunsetted | Apr 26, 2024 | Jul 21, 2024 | Jul 21, 2024 | claude-3-5-sonnet-20240620 | announce |
claude-2.1 | Sunsetted | Apr 26, 2024 | Jul 21, 2024 | Jul 21, 2024 | claude-3-5-sonnet-20240620 | announce |
Cohere (1 model)
| Model | Status | Announced | Deprecated | Sunset | Replacement | Source |
|---|---|---|---|---|---|---|
command Cohere Command (original) Pre-RAG Command family. Replaced by Command R+ optimized for retrieval. | Sunsetted | Sep 26, 2024 | Dec 15, 2024 | Mar 15, 2025 | command-r-plus | announce |
Google (3 models)
| Model | Status | Announced | Deprecated | Sunset | Replacement | Source |
|---|---|---|---|---|---|---|
gemini-1.0-pro Gemini 1.0 Pro First-generation Gemini API. Replaced by 1.5 family with longer context. | Sunsetted | n/a | Feb 15, 2025 | Feb 15, 2025 | gemini-1.5-pro | announce |
text-bison-001 PaLM 2 (text-bison) Original PaLM 2 text generation API. Migration to Gemini API required. | Sunsetted | Apr 9, 2024 | Aug 15, 2024 | Oct 9, 2024 | gemini-1.5-pro | announce |
chat-bison-001 PaLM 2 (chat-bison) | Sunsetted | Apr 9, 2024 | Aug 15, 2024 | Oct 9, 2024 | gemini-1.5-pro | announce |
OpenAI (5 models)
| Model | Status | Announced | Deprecated | Sunset | Replacement | Source |
|---|---|---|---|---|---|---|
gpt-3.5-turbo-0613 | Sunsetted | Nov 6, 2023 | Sep 13, 2024 | Sep 13, 2024 | gpt-3.5-turbo | announce |
gpt-3.5-turbo-0301 | Sunsetted | Jul 6, 2023 | Jun 13, 2024 | Jun 13, 2024 | gpt-3.5-turbo | announce |
gpt-4-0314 | Sunsetted | Nov 6, 2023 | Jun 13, 2024 | Jun 13, 2024 | gpt-4-turbo | announce |
gpt-4-32k-0314 Both 32k variants (-0314 and -0613) sunsetted together. 128k context now standard. | Sunsetted | Nov 6, 2023 | Jun 6, 2024 | Jun 6, 2024 | gpt-4-turbo | announce |
text-davinci-003 Last of the original GPT-3 completion-API family. Replaced by chat-completions. | Sunsetted | Jul 6, 2023 | Jan 4, 2024 | Jan 4, 2024 | gpt-3.5-turbo-instruct | announce |
For agents
Machine-readable JSON of this calendar lives at /api/model-deprecations and is free to consume. Filter by provider with ?provider=OpenAI or by lifecycle stage with ?status=sunsetted. Cached 600 seconds at the edge.
The calendar is hand-curated from each provider's authoritative deprecation page. If you spot a missing entry or an incorrect date, the canonical source is at worker/src/model-deprecations.ts. PRs welcome.