diff --git a/packages/prisma-adapter/src/prisma-adapter.test.ts b/packages/prisma-adapter/src/prisma-adapter.test.ts
index 21573e48e8..ea5162b61b 100644
--- a/packages/prisma-adapter/src/prisma-adapter.test.ts
+++ b/packages/prisma-adapter/src/prisma-adapter.test.ts
@@ -283,6 +283,12 @@ describe("prisma-adapter", () => {
 				mode: "insensitive" as const,
 			},
 			{ field: "email", value: "a.c@x.io" },
+			{
+				field: "name",
+				value: "a.c",
+				operator: "gte" as const,
+				mode: "insensitive" as const,
+			},
 		];
 
 		await createAdapter("mongodb").findMany({ model: "user", where });
@@ -294,6 +300,7 @@ describe("prisma-adapter", () => {
 				{ email: { equals: "a\\.c@x\\.io", mode: "insensitive" } },
 				{ email: { in: ["a\\+b@x\\.io"], mode: "insensitive" } },
 				{ email: { equals: "a.c@x.io" } },
+				{ name: { gte: "a.c", mode: "insensitive" } },
 			],
 		});
 
@@ -306,6 +313,7 @@ describe("prisma-adapter", () => {
 				{ email: { equals: "a.c@x.io", mode: "insensitive" } },
 				{ email: { in: ["a+b@x.io"], mode: "insensitive" } },
 				{ email: { equals: "a.c@x.io" } },
+				{ name: { gte: "a.c", mode: "insensitive" } },
 			],
 		});
 	});
diff --git a/packages/prisma-adapter/src/prisma-adapter.ts b/packages/prisma-adapter/src/prisma-adapter.ts
index e963c978c1..9e32ec2ea2 100644
--- a/packages/prisma-adapter/src/prisma-adapter.ts
+++ b/packages/prisma-adapter/src/prisma-adapter.ts
@@ -279,12 +279,18 @@ export const prismaAdapter = (prisma: PrismaClient, config: PrismaConfig) => {
 						isInsensitive && providerSupportsMode ? "insensitive" : undefined;
 					const modeFilter = prismaMode ? { mode: prismaMode } : {};
 					// Prisma's MongoDB connector builds `$regexMatch` patterns from these values unescaped.
+					// Range operators compare string order instead.
 					const usesRegex =
 						config.provider === "mongodb" &&
-						(prismaMode !== undefined ||
-							w.operator === "contains" ||
+						(w.operator === "contains" ||
 							w.operator === "starts_with" ||
-							w.operator === "ends_with");
+							w.operator === "ends_with" ||
+							(prismaMode !== undefined &&
+								(!w.operator ||
+									w.operator === "eq" ||
+									w.operator === "ne" ||
+									w.operator === "in" ||
+									w.operator === "not_in")));
 					const toPrismaValue = (v: unknown) =>
 						usesRegex && typeof v === "string"
 							? v.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")