# xAI Grok 4.20 Reasoning — deprecation status

> No — Grok 4.20 Reasoning is not deprecated as of August 3, 2026. xAI has announced neither a deprecation nor a shutdown date for it.

A dated 4.20 snapshot that keeps reasoning and non-reasoning as separate ids, the convention xAI had just moved away from with 4.3. Pinned snapshots like this one are the safe choice for evaluation harnesses, at the cost of being first in line whenever xAI runs its next retirement wave.

## Facts

| Field | Value |
| --- | --- |
| Provider | xAI |
| Model id | `grok-4.20-0309-reasoning` |
| Status | Active |
| Last verified | August 3, 2026 |

## FAQ

### Is xAI Grok 4.20 Reasoning still available?

Yes. xAI Grok 4.20 Reasoning is active and fully supported as of August 3, 2026.

## Sources

- [xAI models and pricing](https://docs.x.ai/developers/models) — accessed 2026-08-03

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Canonical page: https://modeldeprecations.dev/xai/grok-4.20-0309-reasoning
JSON: https://modeldeprecations.dev/api/v1/models/xai/grok-4.20-0309-reasoning.json