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LLM model retirement checker

Type a model ID to see when it stops working on each platform and what the provider says to move to. It covers 125 model IDs from Anthropic, OpenAI and Google, on their own APIs and on Amazon Bedrock, Google Cloud and Microsoft Foundry.

The next retirements

Every model ID we track with a retirement date in the next 120 days, as checked on 11 November 2026. A date marked “at the earliest” is the soonest the provider may retire it.

DateModel IDPlatformMove to
13 November 2026anthropic.claude-3-5-sonnet-20240620-v1:0
ap-northeast-2, ap-south-1, ap-southeast-1		Amazon BedrockNot named
13 November 2026anthropic.claude-3-5-sonnet-20241022-v2:0
ap-northeast-2, ap-south-1, ap-southeast-1		Amazon BedrockNot named
13 November 2026anthropic.claude-3-7-sonnet-20250219-v1:0
ap-south-1, eu-west-2		Amazon BedrockNot named
13 November 2026anthropic.claude-3-haiku-20240307-v1:0
ap-northeast-2, ap-south-1, ap-southeast-1		Amazon BedrockNot named
13 November 2026anthropic.claude-3-haiku-20240307-v1:0
eu-central-2, sa-east-1		Amazon BedrockNot named
13 November 2026anthropic.claude-3-sonnet-20240229-v1:0
ap-south-1, ap-southeast-1, eu-west-2		Amazon BedrockNot named
13 November 2026anthropic.claude-3-sonnet-20240229-v1:0
sa-east-1		Amazon BedrockNot named
15 November 2026claude-haiku-4-5 (versions 1 and 2)Microsoft FoundryNot named
19 November 2026o1 (version 2024-12-17)Azure OpenAI (Microsoft Foundry)gpt-5.6-sol
19 November 2026o1-pro (version 2025-03-19)Azure OpenAI (Microsoft Foundry)gpt-5.6-sol
19 November 2026o3 (version 2025-04-16)Azure OpenAI (Microsoft Foundry)gpt-5.6-sol
19 November 2026o3-deep-research (version 2025-06-26)Azure OpenAI (Microsoft Foundry)gpt-5.6-sol
19 November 2026o3-mini (version 2025-01-31)Azure OpenAI (Microsoft Foundry)gpt-5.6-terra
19 November 2026o3-pro (version 2025-06-10)Azure OpenAI (Microsoft Foundry)gpt-5.6-sol
19 November 2026o4-mini (version 2025-04-16)Azure OpenAI (Microsoft Foundry)gpt-5.6-terra
19 November 2026gemini-3.6-flashVertex AI (Gemini Enterprise Agent Platform)gemini-3.8-flash
24 November 2026, at the earliestclaude-opus-4-5-20251101Claude APINot named
24 November 2026claude-opus-4-5 (version 1)Microsoft FoundryNot named
27 November 2026anthropic.claude-3-haiku-20240307-v1:0
ca-central-1		Amazon BedrockNot named
27 November 2026anthropic.claude-3-sonnet-20240229-v1:0
ca-central-1		Amazon BedrockNot named
30 November 2026claude-sonnet-4-5-20250929Claude APIclaude-sonnet-5-5
30 November 2026claude-sonnet-4-5Google Cloud (Gemini Enterprise Agent Platform)Not named
11 December 2026gpt-5OpenAI APIgpt-5.6-sol
11 December 2026gpt-5-2025-08-07OpenAI APIgpt-5.6-sol
11 December 2026gpt-5-miniOpenAI APIgpt-5.6-terra
11 December 2026gpt-5-mini-2025-08-07OpenAI APIgpt-5.6-terra
11 December 2026gpt-5-nanoOpenAI APIgpt-5.6-luna
11 December 2026gpt-5-nano-2025-08-07OpenAI APIgpt-5.6-luna
11 December 2026gpt-5-proOpenAI APIgpt-5.6-sol (reasoning.mode: pro)
11 December 2026gpt-5-pro-2025-10-06OpenAI APIgpt-5.6-sol (reasoning.mode: pro)
11 December 2026o3OpenAI APIgpt-5.6-sol
11 December 2026o3-2025-04-16OpenAI APIgpt-5.6-sol
11 December 2026o3-proOpenAI APIgpt-5.6-sol (reasoning.mode: pro)
11 December 2026o3-pro-2025-06-10OpenAI APIgpt-5.6-sol (reasoning.mode: pro)
8 January 2027anthropic.claude-opus-4-1-20250805-v1:0
us-east-1, us-east-2, us-west-2		Amazon BedrockNot named
14 January 2027gpt-4o (version 2024-05-13)Azure OpenAI (Microsoft Foundry)gpt-5.1 (2025-11-13)
14 January 2027gpt-4.1-2025-04-14OpenAI APIgpt-6-luna
14 January 2027gpt-4.1-mini-2025-04-14OpenAI APIgpt-6-luna
14 January 2027gpt-4o-2024-08-06OpenAI APIgpt-6-luna
14 January 2027gpt-4o-2024-11-20OpenAI APIgpt-6-luna
14 January 2027gpt-4o-mini-2024-07-18OpenAI APIgpt-6-luna
28 January 2027gemini-3.7-flashVertex AI (Gemini Enterprise Agent Platform)gemini-3.8-flash
1 February 2027gpt-5.5-cyber-previewOpenAI APIThe most capable cyber model available to you
9 February 2027gpt-5 (version 2025-08-07)Azure OpenAI (Microsoft Foundry)Not named

The data behind it

The checker reads the same records as our guide to LLM model deprecation dates, one per model ID and platform, each with the provider page it came from and the day we last checked it. You can download them as JSON under CC BY 4.0 and use them in your own tools.

A retirement date tells you when requests start to fail. It doesn’t tell you whether the replacement behaves the same for your agent. Finding that out takes a run of your regression suite on both models, which our AI agent maintenance does before every model switch.