diff --git a/kikotools/tools/model_resolution_picker/logic.py b/kikotools/tools/model_resolution_picker/logic.py
index 56469d7..fc33c41 100644
--- a/kikotools/tools/model_resolution_picker/logic.py
+++ b/kikotools/tools/model_resolution_picker/logic.py
@@ -5,6 +5,8 @@ import re
 from decimal import ROUND_HALF_UP, Decimal
 from typing import Optional
 
+from .table import MAX_SIDE, MIN_SIDE
+
 MEGAPIXEL = 1_048_576
 
 _ALIASES = {
@@ -47,7 +49,7 @@ def ratio_label(width: int, height: int) -> str:
     return _ALIASES.get(label, label)
 
 
-_SIZE_LABEL = re.compile(r"^(\d+)×(\d+) - \S+ \(\d+\.\dMP\)$")
+_SIZE_LABEL = re.compile(r"^(\d{1,5})×(\d{1,5}) - \S+ \(\d+\.\dMP\)$")
 
 
 def size_label(width: int, height: int, ratio_text: str) -> str:
@@ -65,4 +67,5 @@ def parse_size_label(text: object) -> Optional[tuple[int, int]]:
     if match is None:
         return None
     width, height = int(match.group(1)), int(match.group(2))
-    return (width, height) if width > 0 and height > 0 else None
+    in_range = MIN_SIDE <= width <= MAX_SIDE and MIN_SIDE <= height <= MAX_SIDE
+    return (width, height) if in_range else None
diff --git a/kikotools/tools/model_resolution_picker/node.py b/kikotools/tools/model_resolution_picker/node.py
index b61e6dc..dc8c864 100644
--- a/kikotools/tools/model_resolution_picker/node.py
+++ b/kikotools/tools/model_resolution_picker/node.py
@@ -15,6 +15,7 @@ from .families import (
     resolve_family,
 )
 from .logic import parse_size_label, round_to_step
+from .table import MAX_SIDE, MIN_SIDE
 
 logger = logging.getLogger(__name__)
 
@@ -27,7 +28,7 @@ class ModelResolutionPickerNode(ComfyAssetsBaseNode):
     @classmethod
     def INPUT_TYPES(cls) -> Dict[str, Any]:
         """Define the input types for the ComfyUI node."""
-        size_options = {"default": 1024, "min": 64, "max": 8192, "step": 8}
+        size_options = {"default": 1024, "min": MIN_SIDE, "max": MAX_SIDE, "step": 8}
         return {
             "required": {
                 "model": (
diff --git a/kikotools/tools/model_resolution_picker/table.py b/kikotools/tools/model_resolution_picker/table.py
index 45e5b96..121f768 100644
--- a/kikotools/tools/model_resolution_picker/table.py
+++ b/kikotools/tools/model_resolution_picker/table.py
@@ -41,10 +41,12 @@ TABLE_VERSION = 1
 GROUPS = ("image", "video")
 VAE_RATIOS = (8, 16, 32)
 CHIP_TOLERANCE = 0.07
-# Generous sanity bounds so absurd values are reported instead of overflowing.
+# Sanity bounds so absurd values are reported instead of overflowing.
 MAX_STEP = 4096
 MAX_MEGAPIXELS = 64
-MAX_SIDE = 65536
+# Match the node's width/height widget limits.
+MIN_SIDE = 64
+MAX_SIDE = 8192
 
 Size = Tuple[int, int]
 
@@ -79,7 +81,7 @@ def _is_size(value: Any) -> bool:
         isinstance(value, (list, tuple))
         and len(value) == 2
         and all(
-            isinstance(v, int) and not isinstance(v, bool) and 0 < v <= MAX_SIDE
+            isinstance(v, int) and not isinstance(v, bool) and MIN_SIDE <= v <= MAX_SIDE
             for v in value
         )
     )
@@ -258,7 +260,7 @@ def _validate_default_label(default: Any, entries: List[Dict[str, Any]]) -> List
 def validate_table(data: Any) -> List[str]:
     """Return every problem found in ``data``; an empty list means it is valid.
 
-    Bounds: step <= 4096, megapixels in (0, 64], each side <= 65536.
+    Bounds: step <= 4096, megapixels in (0, 64], each side in 64..8192.
     """
     if not isinstance(data, dict):
         return ["table must be a JSON object"]
diff --git a/tests/js/resolution-picker.test.mjs b/tests/js/resolution-picker.test.mjs
index d50f75f..3c13e4e 100644
--- a/tests/js/resolution-picker.test.mjs
+++ b/tests/js/resolution-picker.test.mjs
@@ -89,3 +89,11 @@ test('modelOptions lists payload labels in order and keeps an absent current val
     assert.deepEqual(modelOptions(payload, undefined), ['A', 'B']);
     assert.deepEqual(modelOptions(null, 'Gone'), ['Gone']);
 });
+
+test('parseSizeLabel rejects sizes outside the widget limits like the Python parser', () => {
+    assert.equal(parseSizeLabel('16384×16384 - 1:1 (256.0MP)'), null);
+    assert.equal(parseSizeLabel('32×32 - 1:1 (0.0MP)'), null);
+    assert.deepEqual(parseSizeLabel('64×8192 - 1:128 (0.5MP)'), [64, 8192]);
+    assert.equal(parseSizeLabel('8193×64 - 128:1 (0.5MP)'), null);
+    assert.equal(parseSizeLabel(`${'9'.repeat(5000)}×${'9'.repeat(5000)} - 1:1 (1.0MP)`), null);
+});
diff --git a/tests/unit/tools/model_resolution_picker/test_logic.py b/tests/unit/tools/model_resolution_picker/test_logic.py
index 03c7c04..4404f09 100644
--- a/tests/unit/tools/model_resolution_picker/test_logic.py
+++ b/tests/unit/tools/model_resolution_picker/test_logic.py
@@ -48,3 +48,12 @@ def test_parse_size_label_round_trips_and_rejects_garbage():
     assert parse_size_label("garbage") is None
     assert parse_size_label("0×832 - 3:2 (1.0MP)") is None
     assert parse_size_label(None) is None
+
+
+def test_parse_size_label_rejects_sizes_outside_the_widget_limits():
+    assert parse_size_label("16384×16384 - 1:1 (256.0MP)") is None
+    assert parse_size_label("32×32 - 1:1 (0.0MP)") is None
+    assert parse_size_label("64×8192 - 1:128 (0.5MP)") == (64, 8192)
+    assert parse_size_label("8193×64 - 128:1 (0.5MP)") is None
+    huge = "9" * 5000 + "×" + "9" * 5000 + " - 1:1 (1.0MP)"
+    assert parse_size_label(huge) is None
diff --git a/tests/unit/tools/model_resolution_picker/test_table.py b/tests/unit/tools/model_resolution_picker/test_table.py
index 3f587a3..2cc12d3 100644
--- a/tests/unit/tools/model_resolution_picker/test_table.py
+++ b/tests/unit/tools/model_resolution_picker/test_table.py
@@ -233,3 +233,17 @@ def test_families_module_raises_runtime_error_on_invalid_shipped_file(
         families_module.load_shipped_families(path)
 
     assert "SD 1.5" in str(error.value) and "vaeRatio" in str(error.value)
+
+
+@pytest.mark.parametrize("side", [63, 8200, 65536])
+def test_validate_table_rejects_sizes_outside_the_widget_limits(side: int):
+    data = shipped_data()
+    family(data, "SD 1.5")["sizes"]["1:1"].append([side, side])
+
+    assert any("sizes must be a list" in p for p in validate_table(data))
+
+
+def test_validate_table_accepts_sizes_at_the_widget_limits():
+    from kikotools.tools.model_resolution_picker.table import MAX_SIDE, MIN_SIDE
+
+    assert (MIN_SIDE, MAX_SIDE) == (64, 8192)
diff --git a/web/ui/resolution-picker.js b/web/ui/resolution-picker.js
index 388b5ba..75797e0 100644
--- a/web/ui/resolution-picker.js
+++ b/web/ui/resolution-picker.js
@@ -115,7 +115,7 @@ export function sizeOnModelChange(payload, newLabel, width, height, chip) {
     return defaultEntry(family, chip) || family.default;
 }
 
-const SIZE_LABEL = /^(\d+)×(\d+) - \S+ \(\d+\.\dMP\)$/;
+const SIZE_LABEL = /^(\d{1,5})×(\d{1,5}) - \S+ \(\d+\.\dMP\)$/;
 
 export function sizeLabel(width, height, ratioText) {
     return `${width}×${height} - ${ratioText} (${megapixels(width, height)}MP)`;
@@ -125,7 +125,8 @@ export function parseSizeLabel(text) {
     const match = typeof text === 'string' ? SIZE_LABEL.exec(text) : null;
     if (!match) return null;
     const [width, height] = [Number(match[1]), Number(match[2])];
-    return width > 0 && height > 0 ? [width, height] : null;
+    const inRange = (side) => side >= MIN_SIDE && side <= MAX_SIDE;
+    return inRange(width) && inRange(height) ? [width, height] : null;
 }
 
 export function dropdownOptions(payload, label, chip) {