diff --git a/src/services/api/errors.test.ts b/src/services/api/errors.test.ts
index 9c8c9e3f..92508240 100644
--- a/src/services/api/errors.test.ts
+++ b/src/services/api/errors.test.ts
@@ -17,6 +17,11 @@ describe('image unsupported API errors', () => {
         'unsupported modality: image input is not available',
       ),
     ).toBe(true)
+    expect(
+      isUnsupportedImageInputErrorMessage(
+        'Failed to deserialize the JSON body into the target type: messages[1]: unknown variant `image_url`, expected `text` at line 1 column 394097',
+      ),
+    ).toBe(true)
     expect(isUnsupportedImageInputErrorMessage('image exceeds maximum')).toBe(false)
   })
 
diff --git a/src/services/api/errors.ts b/src/services/api/errors.ts
index c5df6dd1..a77459c6 100644
--- a/src/services/api/errors.ts
+++ b/src/services/api/errors.ts
@@ -430,6 +430,9 @@ export function extractUnknownErrorFormat(value: unknown): string | undefined {
 export function isUnsupportedImageInputErrorMessage(message: string): boolean {
   const raw = message.toLowerCase()
   if (!raw.includes('image')) return false
+  if (raw.includes('image_url') && raw.includes('expected') && raw.includes('text')) {
+    return true
+  }
   return (
     raw.includes('not support') ||
     raw.includes('not supported') ||