> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wandb.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Model Lifecycle

> Learn about W&B Inference model lifecycle and retirement


New models are frequently evaluated and released as part of the W\&B Inference catalog.

Older models are regularly reviewed and may be retired to prioritize the most in-demand and highest-quality offerings.

## Model lifecycle stages

Models in W\&B Inference use the following terminology for the stages of their lifecycle:

* **Experimental**: The model is available for initial experimentation, but is not bound by our standard SLA or deprecation process.
* **Generally available**: The model is fully supported and is recommended for use.
* **Deprecated**: The model is scheduled for removal. Customers should update to a recommended replacement as soon as possible.
* **Retired**: The model is no longer available. Any requests to retired models fail and return an `HTTP 404` status code for all requests.

## Deprecation process

When deprecating a generally available model, W\&B will provide at least two weeks of notice on this page before the model is retired.

We additionally attempt to notify recent users of a deprecated model via email
and provide recommendations for replacement models.

Models that are in the **deprecated** stage continue to serve requests.

## Deprecated models

The following W\&B Inference models are **deprecated**:

| Deprecation date | Retirement date | Model ID            | Recommended replacement |
| ---------------- | --------------- | ------------------- | ----------------------- |
| 2026-04-24       | 2026-05-11      | `zai-org/GLM-5-FP8` | `zai-org/GLM-5.1`       |

## Retired models

The following W\&B Inference models are **retired**:

| Retirement date | Model ID                                    | Recommended replacement       |
| --------------- | ------------------------------------------- | ----------------------------- |
| 2026-04-21      | `meta-llama/Llama-4-Scout-17B-16E-Instruct` | `Qwen/Qwen3.5-35B-A3B`        |
| 2026-03-04      | `deepseek-ai/DeepSeek-R1-0528`              |                               |
| 2026-03-04      | `deepseek-ai/DeepSeek-V3-0324`              |                               |
| 2026-03-04      | `moonshotai/Kimi-K2-Instruct`               | `moonshotai/Kimi-K2.5`        |
| 2026-03-04      | `moonshotai/Kimi-K2-Instruct-0905`          | `moonshotai/Kimi-K2.5`        |
| 2026-03-04      | `Qwen/Qwen2.5-14B-Instruct`                 | `OpenPipe/Qwen3-14B-Instruct` |
| 2026-03-04      | `zai-org/GLM-4.5`                           | `zai-org/GLM-5-FP8`           |