diff --git a/apps/api/migrations/0072_glm52_text_capability_sync.sql b/apps/api/migrations/0072_glm52_text_capability_sync.sql
new file mode 100644
index 0000000..5e24be9
--- /dev/null
+++ b/apps/api/migrations/0072_glm52_text_capability_sync.sql
@@ -0,0 +1,102 @@
+-- GLM-5.2 is a text-only foundation model. The official model page lists text
+-- as both its input and output modality; vision belongs to the separate GLM-5V
+-- family. Keep the base catalog, snapshots, and already-created platform rows
+-- authoritative so stale/customized image_analysis metadata cannot leak back
+-- into model discovery.
+-- Source: https://docs.bigmodel.cn/cn/guide/models/text/glm-5.2
+
+WITH glm52_contract AS (
+  SELECT
+    '["text_generate","tools_call"]'::jsonb AS model_type,
+    '{
+      "text_generate": {
+        "supportedApiProtocols": ["openai_chat_completions"],
+        "max_context_tokens": 1000000,
+        "max_output_tokens": 131072,
+        "supportTool": true,
+        "supportThinking": true,
+        "supportThinkingModeSwitch": true,
+        "thinkingEffortLevels": ["none", "high", "max"],
+        "supportStructuredOutput": true
+      },
+      "tools_call": {
+        "supportedApiProtocols": ["openai_chat_completions"],
+        "max_context_tokens": 1000000,
+        "max_output_tokens": 131072,
+        "supportTool": true,
+        "supportThinking": true,
+        "supportThinkingModeSwitch": true,
+        "thinkingEffortLevels": ["none", "high", "max"],
+        "supportStructuredOutput": true
+      },
+      "originalTypes": ["text_generate", "tools_call"]
+    }'::jsonb AS capabilities,
+    '旗舰 Coding 文本模型（不支持图像/视频理解），1M 上下文，最大输出 128K；支持思考及推理强度、流式输出/工具调用、结构化输出与隐式上下文缓存。'::text AS description
+),
+updated_base_models AS (
+  UPDATE base_model_catalog base_model
+  SET model_type = contract.model_type,
+      capabilities = contract.capabilities,
+      metadata = COALESCE(base_model.metadata, '{}'::jsonb)
+      || jsonb_build_object(
+        'originalTypes', contract.model_type,
+        'description', contract.description,
+        'rawModel', COALESCE(base_model.metadata->'rawModel', '{}'::jsonb)
+          || jsonb_build_object(
+            'types', contract.model_type,
+            'description', contract.description,
+            'capabilities', contract.capabilities - 'originalTypes'
+          )
+      ),
+      default_snapshot = CASE
+      WHEN COALESCE(base_model.default_snapshot, '{}'::jsonb) = '{}'::jsonb THEN base_model.default_snapshot
+      ELSE COALESCE(base_model.default_snapshot, '{}'::jsonb)
+        || jsonb_build_object(
+          'modelType', contract.model_type,
+          'capabilities', contract.capabilities,
+          'metadata', COALESCE(base_model.default_snapshot->'metadata', '{}'::jsonb)
+            || jsonb_build_object(
+              'originalTypes', contract.model_type,
+              'description', contract.description,
+              'rawModel', COALESCE(base_model.default_snapshot->'metadata'->'rawModel', '{}'::jsonb)
+                || jsonb_build_object(
+                  'types', contract.model_type,
+                  'description', contract.description,
+                  'capabilities', contract.capabilities - 'originalTypes'
+                )
+            )
+        )
+      END,
+      updated_at = now()
+  FROM glm52_contract contract
+  WHERE (
+    base_model.canonical_model_key IN ('easyai:GLM-5.2', 'zhipu-openai:glm-5.2')
+    OR (
+      base_model.provider_key = 'easyai'
+      AND lower(base_model.provider_model_name) = 'glm-5.2'
+  )
+    OR (
+      base_model.provider_key = 'zhipu-openai'
+      AND lower(base_model.provider_model_name) = 'glm-5.2'
+    )
+    )
+  RETURNING base_model.id
+)
+UPDATE platform_models platform_model
+SET model_type = contract.model_type,
+    capabilities = contract.capabilities,
+    capability_override = (COALESCE(platform_model.capability_override, '{}'::jsonb) - 'image_analysis' - 'video_understanding' - 'originalTypes'),
+    updated_at = now()
+FROM integration_platforms platform
+CROSS JOIN glm52_contract contract
+WHERE platform_model.platform_id = platform.id
+  AND platform.deleted_at IS NULL
+  AND (
+    platform_model.base_model_id IN (
+      SELECT id FROM updated_base_models
+    )
+    OR (
+      platform.provider IN ('easyai', 'zhipu-openai')
+      AND lower(COALESCE(NULLIF(platform_model.provider_model_name, ''), platform_model.model_name)) = 'glm-5.2'
+    )
+  );