diff --git a/packages/server/src/server/agent/providers/claude/claude-models.test.ts b/packages/server/src/server/agent/providers/claude/claude-models.test.ts
index 0da2b8fa2..6f96cd1a5 100644
--- a/packages/server/src/server/agent/providers/claude/claude-models.test.ts
+++ b/packages/server/src/server/agent/providers/claude/claude-models.test.ts
@@ -10,6 +10,7 @@ describe("getClaudeModels", () => {
       "claude-opus-4-7",
       "claude-opus-4-6[1m]",
       "claude-opus-4-6",
+      "claude-sonnet-4-6[1m]",
       "claude-sonnet-4-6",
       "claude-haiku-4-5",
     ]);
diff --git a/packages/server/src/server/agent/providers/claude/claude-models.ts b/packages/server/src/server/agent/providers/claude/claude-models.ts
index f38170223..fa931bbe0 100644
--- a/packages/server/src/server/agent/providers/claude/claude-models.ts
+++ b/packages/server/src/server/agent/providers/claude/claude-models.ts
@@ -45,6 +45,13 @@ const CLAUDE_MODELS: AgentModelDefinition[] = [
     isDefault: true,
     thinkingOptions: [...CLAUDE_THINKING_OPTIONS],
   },
+  {
+    provider: "claude",
+    id: "claude-sonnet-4-6[1m]",
+    label: "Sonnet 4.6 1M",
+    description: "Sonnet 4.6 with 1M context window",
+    thinkingOptions: [...CLAUDE_THINKING_OPTIONS],
+  },
   {
     provider: "claude",
     id: "claude-sonnet-4-6",