xAI
grok-4.5
Grok 4.5 (xAI)
Active
No — Grok 4.5 is not deprecated as of August 3, 2026. xAI has announced neither a deprecation nor a shutdown date for it.
xAI's current flagship, with a 500k context window and a February 2026 knowledge cutoff. It is worth noting that it is not the model xAI routes retired ids to - that is grok-4.3, which has double the context and costs less. 4.5 is a deliberate choice rather than a default you fall into.
The facts
| Provider | xAI |
|---|---|
| Model id | grok-4.5 |
| Also published as | grok-4.5-latest |
| Released | — |
| Deprecated | not deprecated |
| Shutdown | not published |
| Status | Active |
| Last verified | August 3, 2026 |
Frequently asked questions
- Is xAI Grok 4.5 still available?
- Yes. xAI Grok 4.5 is active and fully supported as of August 3, 2026.
- Does this apply to grok-4.5-latest too?
- Yes. xAI Grok 4.5 is also published as `grok-4.5-latest`; that id shares the same lifecycle dates as `grok-4.5`.
Sources
- xAI models and pricing · docs.x.ai · accessed August 3, 2026
Found something wrong? The data is one YAML file — edit it on GitHub.
This page, for machines
Drop the badge in a README so it turns red the day this model is retired:
[](https://modeldeprecations.dev/xai/grok-4.5)