Model lifecycle
Amazon Bedrock is continuously working to bring the latest versions of foundation models that have better capabilities, accuracy, and safety. As we launch new model versions, you can test them with the Amazon Bedrock console or API, and migrate your applications to benefit from the latest model versions.
A model offered on Amazon Bedrock can be in one of these states: Active, Legacy, or End-of-Life (EOL).
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Active: The model provider is actively working on this version, and it will continue to get updates such as bug fixes and minor improvements.
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Legacy: A version is marked Legacy when there is a more recent version which provides superior performance. Amazon Bedrock sets an EOL date for Legacy versions.
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EOL: This version is no longer available for use. Any requests made to this version will fail.
We will support base models for a minimum of 12 months from the launch in a region. We will always give customers 6 months of notice before we mark the model EOL. Model will be marked Legacy on the date when the EOL notice is sent out. The console marks a model version's state as Active or Legacy. When you make a GetFoundationModelor ListFoundationModels call, you can find the state of the model in the modelLifecycle field in the response. While you can continue to use a Legacy version, you should plan to transition to an Active version before the EOL date.
On-Demand, Provisioned Throughput, and model customization
You specify the version of a model when you use it in On-Demand mode (for example, anthropic.claude-v2, anthropic.claude-v2:1, etc.).
When you configure Provisioned Throughput, you must specify a model version that will remain unchanged for the entire term.
If you customized a model, you can continue to use it until the EOL date of the base model version that you used for customization. You can also customize a legacy model version, but you should plan to migrate before it reaches its EOL date.
Note
Service quotas are shared among model minor versions.
Legacy versions
The following table shows the legacy versions of models available on Amazon Bedrock.
| Model version | Legacy date | EOL date | Recommended model version replacement | Recommended model ID |
|---|---|---|---|---|
| Stable Diffusion XL 0.8 | February 2, 2024 | April 30, 2024 | Stable Diffusion XL 1.x | stability.stable-diffusion-xl-v1 |
| Claude v1.3 | November 28, 2023 | February 28, 2024 | Claude v2.1 | anthropic.claude-v2:1 |
| Titan Embeddings - Text v1.1 | November 7, 2023 | February 15, 2024 | Titan Embeddings - Text v1.2 | amazon.titan-embed-text-v1 |
| Meta Llama 2 13b-chat-v1, Meta Llama 2 70b-chat-v1, Meta Llama 2-13b, Meta Llama 2-70b | May 12, 2024 | October 30, 2024 | Meta Llama3 and Meta Llama3.1 | meta.llama3-1-8b-instruct-v1, meta.llama3-1-70b-instruct-v1, meta.llama3-1-405b-instruct-v1, meta.llama3-8b-instruct-v1, and meta.llama3-70b-instruct-v1 |
| Ai21 J2 Mid-v1, Ai21 J2 Ultra-v1, Ai21 J2-Grande-Instruct, and Ai21 J2 Jumbo-Instruct | April 30, 2024 (only in us-west-2) | October 4, 2024 (only in us-west-2) | Jamba-Instruct v1 | ai21.jamba-instruct-v1:0 in US East (N. Virginia) |
| Ai21 J2 Mid-v1, Ai21 J2 Ultra-v1, Ai21 J2-Grande-Instruct, and Ai21 J2 Jumbo-Instruct | October 4, 2024 (only in us-east-1) | March 12, 2025 (only in us-east-1) | Jamba-Instruct v1 | ai21.jamba-instruct-v1:0 |
| Cohere Command, Cohere Command Light | October 4, 2024 | April 30, 2025 | Cohere Command R, Cohere Command R+ | cohere.command-r-v1:0 and cohere.command-r-plus-v1:0 |
| Stable Diffusion XL 1.0 | October 16, 2024 (us-east-1 and us-west-2) | May 20, 2025 (us-east-1 and us-west-2) | Stable Image Core | stability.stable-image-core-v1:0, stability.stable-image-ultra-v1:0, and stability.sd3-large-v1:0 |
