diff --git a/src/megatron/bridge/recipes/ministral3/h100/ministral3.py b/src/megatron/bridge/recipes/ministral3/h100/ministral3.py
index 559df92d51..d7f5383eb3 100644
--- a/src/megatron/bridge/recipes/ministral3/h100/ministral3.py
+++ b/src/megatron/bridge/recipes/ministral3/h100/ministral3.py
@@ -110,6 +110,7 @@ def ministral3_3b_sft_1gpu_h100_bf16_config() -> ConfigContainer:
     # Dataset configuration
     cfg.dataset.seq_length = 4096
     cfg.dataset.hf_processor_path = hf_path
+    cfg.dataset.enable_in_batch_packing = False
 
     # DDP settings
     cfg.ddp.overlap_grad_reduce = False
@@ -225,6 +226,7 @@ def ministral3_8b_sft_2gpu_h100_bf16_config() -> ConfigContainer:
     # Dataset configuration
     cfg.dataset.seq_length = 4096
     cfg.dataset.hf_processor_path = hf_path
+    cfg.dataset.enable_in_batch_packing = False
 
     # DDP settings
     cfg.ddp.overlap_grad_reduce = False
@@ -340,6 +342,7 @@ def ministral3_14b_sft_4gpu_h100_bf16_config() -> ConfigContainer:
     # Dataset configuration
     cfg.dataset.seq_length = 4096
     cfg.dataset.hf_processor_path = hf_path
+    cfg.dataset.enable_in_batch_packing = False
 
     # DDP settings
     cfg.ddp.overlap_grad_reduce = False
@@ -464,6 +467,7 @@ def ministral3_3b_peft_1gpu_h100_bf16_config(peft_scheme: str | PEFT = "lora") -
     # Dataset configuration
     cfg.dataset.seq_length = 4096
     cfg.dataset.hf_processor_path = hf_path
+    cfg.dataset.enable_in_batch_packing = False
 
     # DDP settings
     cfg.ddp.overlap_grad_reduce = False
@@ -588,6 +592,7 @@ def ministral3_8b_peft_1gpu_h100_bf16_config(peft_scheme: str | PEFT = "lora") -
     # Dataset configuration
     cfg.dataset.seq_length = 4096
     cfg.dataset.hf_processor_path = hf_path
+    cfg.dataset.enable_in_batch_packing = False
 
     # DDP settings
     cfg.ddp.overlap_grad_reduce = False
@@ -712,6 +717,7 @@ def ministral3_14b_peft_2gpu_h100_bf16_config(peft_scheme: str | PEFT = "lora")
     # Dataset configuration
     cfg.dataset.seq_length = 4096
     cfg.dataset.hf_processor_path = hf_path
+    cfg.dataset.enable_in_batch_packing = False
 
     # DDP settings
     cfg.ddp.overlap_grad_reduce = False
diff --git a/tests/unit_tests/recipes/test_ministral3_recipes.py b/tests/unit_tests/recipes/test_ministral3_recipes.py
index 019c7c00a0..2f10314154 100644
--- a/tests/unit_tests/recipes/test_ministral3_recipes.py
+++ b/tests/unit_tests/recipes/test_ministral3_recipes.py
@@ -44,6 +44,8 @@
     _ministral3_module.ministral3_14b_peft_config,
 ]
 
+_MINISTRAL3_FUNCS = _MINISTRAL3_SFT_FUNCS + _MINISTRAL3_PEFT_FUNCS
+
 
 class _FakeModelCfg:
     """Fake model configuration for testing."""
@@ -138,6 +140,16 @@ def test_each_ministral3_sft_recipe_uses_recommended_learning_rate(
     assert cfg.optimizer.min_lr == pytest.approx(5e-7)
 
 
+@pytest.mark.parametrize("recipe_func", _MINISTRAL3_FUNCS)
+def test_each_ministral3_recipe_defaults_validate(recipe_func: Callable, monkeypatch: pytest.MonkeyPatch):
+    """Test that every Ministral3 recipe has runnable default batch settings."""
+    patch_recipe_module_global(monkeypatch, _ministral3_module, "AutoBridge", _FakeAutoBridge)
+
+    cfg = recipe_func()
+
+    assert not cfg.dataset.enable_in_batch_packing or cfg.train.micro_batch_size > 1
+
+
 @pytest.mark.parametrize("recipe_func", _MINISTRAL3_PEFT_FUNCS)
 def test_each_ministral3_peft_recipe_builds_config(recipe_func: Callable, monkeypatch: pytest.MonkeyPatch):
     """Test that each Ministral3 PEFT recipe function builds a valid configuration."""