diff --git a/firebase-vertexai/CHANGELOG.md b/firebase-vertexai/CHANGELOG.md
index 427696ef532..56606cf1740 100644
--- a/firebase-vertexai/CHANGELOG.md
+++ b/firebase-vertexai/CHANGELOG.md
@@ -2,6 +2,7 @@
 * [fixed] Improved error message when using an invalid location. (#6428)
 * [fixed] Fixed issue where Firebase App Check error tokens were unintentionally missing from the requests. (#6409)
 * [fixed] Clarified in the documentation that `Schema.integer` and `Schema.float` only provide hints to the model. (#6420)
+* [fixed] Fixed issue were `Schema.double` set the format parameter in `Schema`. (#6432)
 
 # 16.0.1
 * [fixed] Fixed issue where authorization headers weren't correctly formatted and were ignored by the backend. (#6400)
diff --git a/firebase-vertexai/src/main/kotlin/com/google/firebase/vertexai/type/Schema.kt b/firebase-vertexai/src/main/kotlin/com/google/firebase/vertexai/type/Schema.kt
index 5d4b30870aa..b6f69e51d49 100644
--- a/firebase-vertexai/src/main/kotlin/com/google/firebase/vertexai/type/Schema.kt
+++ b/firebase-vertexai/src/main/kotlin/com/google/firebase/vertexai/type/Schema.kt
@@ -105,7 +105,7 @@ internal constructor(
     @JvmName("numDouble")
     @JvmOverloads
     public fun double(description: String? = null, nullable: Boolean = false): Schema =
-      Schema(description = description, nullable = nullable, type = "NUMBER", format = "double")
+      Schema(description = description, nullable = nullable, type = "NUMBER")
 
     /**
      * Returns a [Schema] for a single-precision floating-point number.
diff --git a/firebase-vertexai/src/test/java/com/google/firebase/vertexai/SchemaTests.kt b/firebase-vertexai/src/test/java/com/google/firebase/vertexai/SchemaTests.kt
index 4de73aebcde..747f65ac168 100644
--- a/firebase-vertexai/src/test/java/com/google/firebase/vertexai/SchemaTests.kt
+++ b/firebase-vertexai/src/test/java/com/google/firebase/vertexai/SchemaTests.kt
@@ -69,8 +69,8 @@ internal class SchemaTests {
               "coordinates": {
                 "type": "OBJECT",
                 "properties": {
-                  "latitude": {"type": "NUMBER", "format": "double"},
-                  "longitude": {"type": "NUMBER","format": "double"}
+                  "latitude": {"type": "NUMBER"},
+                  "longitude": {"type": "NUMBER"}
                 },
                 "required": ["latitude","longitude"]
               },
@@ -82,7 +82,7 @@ internal class SchemaTests {
                 },
                 "required": ["latitudinal","longitudinal"]
               },
-              "elevation": {"type": "NUMBER","format": "double"},
+              "elevation": {"type": "NUMBER"},
               "isCapital": {"type": "BOOLEAN"},
               "foundingDate": {"type": "STRING","format": "date","nullable": true}
             },
@@ -177,8 +177,8 @@ internal class SchemaTests {
                   "description": "coordinates",
                   "nullable": true,
                   "properties": {
-                    "latitude": {"type": "NUMBER", "description": "latitude", "format": "double"},
-                    "longitude": {"type": "NUMBER", "description": "longitude", "format": "double"}
+                    "latitude": {"type": "NUMBER", "description": "latitude"},
+                    "longitude": {"type": "NUMBER", "description": "longitude"}
                   },
                   "required": ["latitude","longitude"]
                 },