# xAI Grok 4.20 Multi-Agent — deprecation status

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

xAI's heavy tier, running several agents over the same problem and reconciling their answers inside one API call. It is the descendant of Grok 4 Heavy, which never got an API id at all - this is the first time that mode has been callable rather than being a consumer subscription feature.

## Facts

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

## FAQ

### Is xAI Grok 4.20 Multi-Agent still available?

Yes. xAI Grok 4.20 Multi-Agent 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-multi-agent-0309
JSON: https://modeldeprecations.dev/api/v1/models/xai/grok-4.20-multi-agent-0309.json