Backport: fix(xai): update model list - add GA models, remove beta variants (#13769)

vercel-ai-sdk[bot] · mvanhorn · claude · web-flow · commit 3caa5443f0fc · 2026-03-23T14:53:36.000-05:00
This is an automated backport of #13720 to the release-v6.0 branch. FYI @mvanhorn Co-authored-by: Matt Van Horn <mvanhorn@users.noreply.github.com> Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Co-authored-by: Felix Arntz <felix.arntz@vercel.com> Co-authored-by: Felix Arntz <flixos90@gmail.com>
diff --git a/.changeset/short-hairs-love.md b/.changeset/short-hairs-love.md
@@ -0,0 +1,6 @@
+---
+"@ai-sdk/gateway": patch
+"@ai-sdk/xai": patch
+---
+
+chore(provider/xai): update Grok 4.20 model IDs to their non-beta versions
diff --git a/packages/gateway/src/gateway-language-model-settings.ts b/packages/gateway/src/gateway-language-model-settings.ts
@@ -160,9 +160,9 @@ export type GatewayModelId =
   | 'xai/grok-4-fast-reasoning'
   | 'xai/grok-4.1-fast-non-reasoning'
   | 'xai/grok-4.1-fast-reasoning'
-  | 'xai/grok-4.20-multi-agent-beta'
-  | 'xai/grok-4.20-non-reasoning-beta'
-  | 'xai/grok-4.20-reasoning-beta'
+  | 'xai/grok-4.20-multi-agent'
+  | 'xai/grok-4.20-non-reasoning'
+  | 'xai/grok-4.20-reasoning'
   | 'xai/grok-code-fast-1'
   | 'xiaomi/mimo-v2-flash'
   | 'xiaomi/mimo-v2-pro'
diff --git a/packages/xai/src/responses/xai-responses-options.ts b/packages/xai/src/responses/xai-responses-options.ts
@@ -6,6 +6,9 @@ export type XaiResponsesModelId =
   | 'grok-4'
   | 'grok-4-fast-non-reasoning'
   | 'grok-4-fast-reasoning'
+  | 'grok-4.20-0309-non-reasoning'
+  | 'grok-4.20-0309-reasoning'
+  | 'grok-4.20-multi-agent-0309'
   | (string & {});
 
 /**
diff --git a/packages/xai/src/xai-chat-options.ts b/packages/xai/src/xai-chat-options.ts
@@ -6,6 +6,9 @@ export type XaiChatModelId =
   | 'grok-4-1-fast-non-reasoning'
   | 'grok-4-fast-non-reasoning'
   | 'grok-4-fast-reasoning'
+  | 'grok-4.20-0309-non-reasoning'
+  | 'grok-4.20-0309-reasoning'
+  | 'grok-4.20-multi-agent-0309'
   | 'grok-code-fast-1'
   | 'grok-4'
   | 'grok-4-0709'
