diff --git a/README.md b/README.md
index eee06acd9..837a9f8af 100644
--- a/README.md
+++ b/README.md
@@ -157,6 +157,10 @@ This is useful if you want to use a different shell than your default system she
     "openrouter": {
       "apiKey": "your-api-key",
       "disabled": false
+    },
+    "xai": {
+      "apiKey": "your-api-key",
+      "disabled": false
     }
   },
   "agents": {
@@ -270,6 +274,14 @@ OpenCode supports a variety of AI models from different providers:
 - Gemini 2.5
 - Gemini 2.5 Flash
 
+### XAI
+
+- Grok 3 Beta
+- Grok 3 Mini Beta
+- Grok 3 Fast Beta
+- Grok 3 Mini Fast Beta
+- Grok 4 0709
+
 ## Usage
 
 ```bash
diff --git a/internal/llm/models/xai.go b/internal/llm/models/xai.go
index 00caf3b89..5dbd308b0 100644
--- a/internal/llm/models/xai.go
+++ b/internal/llm/models/xai.go
@@ -7,6 +7,7 @@ const (
 	XAIGrok3MiniBeta     ModelID = "grok-3-mini-beta"
 	XAIGrok3FastBeta     ModelID = "grok-3-fast-beta"
 	XAiGrok3MiniFastBeta ModelID = "grok-3-mini-fast-beta"
+	XAIGrok40709         ModelID = "grok-4-0709"
 )
 
 var XAIModels = map[ModelID]Model{
@@ -58,4 +59,16 @@ var XAIModels = map[ModelID]Model{
 		ContextWindow:      131_072,
 		DefaultMaxTokens:   20_000,
 	},
+	XAIGrok40709: {
+		ID:                 XAIGrok40709,
+		Name:               "Grok 4 0709",
+		Provider:           ProviderXAI,
+		APIModel:           "grok-4-0709",
+		CostPer1MIn:        3.0,
+		CostPer1MInCached:  0.75,
+		CostPer1MOut:       15.0,
+		CostPer1MOutCached: 0.75,
+		ContextWindow:      256_000,
+		DefaultMaxTokens:   20_000,
+	},
 }
diff --git a/opencode-schema.json b/opencode-schema.json
index 406c75f8c..94a0fed09 100644
--- a/opencode-schema.json
+++ b/opencode-schema.json
@@ -173,6 +173,7 @@
               "openrouter.claude-3.7-sonnet",
               "openrouter.gpt-4.5-preview",
               "grok-3-mini-beta",
+              "grok-4-0709",
               "claude-3.7-sonnet",
               "gemini-2.0-flash",
               "openrouter.deepseek-r1-free",