diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9be74e7ef52..ea6970ba7cc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ Docs: https://docs.openclaw.ai
 
 ### Changes
 
+- Agents: add synthetic catalog support for `hf:zai-org/GLM-5`. (#15867) Thanks @battman21.
 - Skills: remove duplicate `local-places` Google Places skill/proxy and keep `goplaces` as the single supported Google Places path.
 - Discord: send voice messages with waveform previews from local audio files (including silent delivery). (#7253) Thanks @nyanjou.
 - Discord: add configurable presence status/activity/type/url (custom status defaults to activity text). (#10855) Thanks @h0tp-ftw.
diff --git a/src/agents/synthetic-models.ts b/src/agents/synthetic-models.ts
index 9b924780586..5d820c8474b 100644
--- a/src/agents/synthetic-models.ts
+++ b/src/agents/synthetic-models.ts
@@ -155,6 +155,14 @@ export const SYNTHETIC_MODEL_CATALOG = [
     contextWindow: 198000,
     maxTokens: 128000,
   },
+  {
+    id: "hf:zai-org/GLM-5",
+    name: "GLM-5",
+    reasoning: true,
+    input: ["text", "image"],
+    contextWindow: 256000,
+    maxTokens: 128000,
+  },
   {
     id: "hf:deepseek-ai/DeepSeek-V3",
     name: "DeepSeek V3",