diff --git a/mem0/vector_stores/turbopuffer.py b/mem0/vector_stores/turbopuffer.py
index bef4b40b2..76281fc96 100644
--- a/mem0/vector_stores/turbopuffer.py
+++ b/mem0/vector_stores/turbopuffer.py
@@ -131,6 +131,18 @@ class TurbopufferDB(VectorStoreBase):
             ))
         return results
 
+    # Maps mem0 filter operators to their Turbopuffer equivalents.
+    OPERATOR_MAP = {
+        "eq": "Eq",
+        "ne": "NotEq",
+        "gt": "Gt",
+        "gte": "Gte",
+        "lt": "Lt",
+        "lte": "Lte",
+        "in": "In",
+        "nin": "NotIn",
+    }
+
     def _convert_filters(self, filters: Optional[Dict]):
         """
         Convert mem0 filters to Turbopuffer filter format.
@@ -143,10 +155,14 @@ class TurbopufferDB(VectorStoreBase):
         conditions = []
         for key, value in filters.items():
             if isinstance(value, dict):
-                if "gte" in value:
-                    conditions.append((key, "Gte", value["gte"]))
-                if "lte" in value:
-                    conditions.append((key, "Lte", value["lte"]))
+                for op, operand in value.items():
+                    tpuf_op = self.OPERATOR_MAP.get(op)
+                    if tpuf_op is None:
+                        raise ValueError(
+                            f"Unsupported filter operator '{op}' for field '{key}'. "
+                            f"Supported operators: {sorted(self.OPERATOR_MAP)}"
+                        )
+                    conditions.append((key, tpuf_op, operand))
             else:
                 conditions.append((key, "Eq", value))
 
diff --git a/tests/vector_stores/test_turbopuffer.py b/tests/vector_stores/test_turbopuffer.py
index d1915b94e..e1b9233bb 100644
--- a/tests/vector_stores/test_turbopuffer.py
+++ b/tests/vector_stores/test_turbopuffer.py
@@ -276,6 +276,40 @@ class TestConvertFilters:
         assert ("user_id", "Eq", "u1") in conditions
         assert ("score", "Gte", 0.5) in conditions
 
+    def test_gt_operator_not_dropped(self, db):
+        """Regression: {"gt": ...} was silently dropped, returning unfiltered results."""
+        result = db._convert_filters({"age": {"gt": 18}})
+        assert result == ("age", "Gt", 18)
+
+    @pytest.mark.parametrize(
+        "op,expected_token",
+        [
+            ("eq", "Eq"),
+            ("ne", "NotEq"),
+            ("gt", "Gt"),
+            ("gte", "Gte"),
+            ("lt", "Lt"),
+            ("lte", "Lte"),
+            ("in", "In"),
+            ("nin", "NotIn"),
+        ],
+    )
+    def test_all_operators_mapped(self, db, op, expected_token):
+        operand = [1, 2] if op in ("in", "nin") else 5
+        result = db._convert_filters({"age": {op: operand}})
+        assert result == ("age", expected_token, operand)
+
+    def test_multiple_operators_on_one_field(self, db):
+        result = db._convert_filters({"age": {"gt": 18, "lt": 65}})
+        assert result[0] == "And"
+        conditions = result[1]
+        assert ("age", "Gt", 18) in conditions
+        assert ("age", "Lt", 65) in conditions
+
+    def test_unknown_operator_raises(self, db):
+        with pytest.raises(ValueError, match="Unsupported filter operator"):
+            db._convert_filters({"age": {"between": [1, 2]}})
+
 
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