diff --git a/models/openai/gpt-5.3-codex-spark-subscription.yaml b/models/openai/gpt-5.3-codex-spark-subscription.yaml
index d7facb12..e56ee4f8 100644
--- a/models/openai/gpt-5.3-codex-spark-subscription.yaml
+++ b/models/openai/gpt-5.3-codex-spark-subscription.yaml
@@ -3,7 +3,7 @@ provider: openai
 authType: subscription
 apiSurface: openai-responses
 model: gpt-5.3-codex-spark
-status: active
+status: retired
 params:
   - path: reasoning.effort
     type: enum
diff --git a/models/openai/gpt-5.4-mini-subscription.yaml b/models/openai/gpt-5.4-mini-subscription.yaml
index b696177e..6dc06241 100644
--- a/models/openai/gpt-5.4-mini-subscription.yaml
+++ b/models/openai/gpt-5.4-mini-subscription.yaml
@@ -3,7 +3,7 @@ provider: openai
 authType: subscription
 apiSurface: openai-responses
 model: gpt-5.4-mini
-status: active
+status: retired
 params:
   - path: reasoning.effort
     type: enum
diff --git a/models/openai/gpt-5.4-subscription.yaml b/models/openai/gpt-5.4-subscription.yaml
index 1abb1525..da575d56 100644
--- a/models/openai/gpt-5.4-subscription.yaml
+++ b/models/openai/gpt-5.4-subscription.yaml
@@ -3,7 +3,7 @@ provider: openai
 authType: subscription
 apiSurface: openai-responses
 model: gpt-5.4
-status: active
+status: retired
 params:
   - path: reasoning.effort
     type: enum
diff --git a/models/xai/grok-4.20-0309-non-reasoning.yaml b/models/xai/grok-4.20-0309-non-reasoning.yaml
index 27df37f8..76cd04b2 100644
--- a/models/xai/grok-4.20-0309-non-reasoning.yaml
+++ b/models/xai/grok-4.20-0309-non-reasoning.yaml
@@ -28,7 +28,7 @@ params:
     description: Controls nucleus sampling by limiting generation to tokens within the selected cumulative probability.
     default: 1
     range:
-      min: 0
+      min: 0.01
       max: 1
       step: 0.01
     group: sampling
diff --git a/models/xai/grok-4.20-0309-reasoning.yaml b/models/xai/grok-4.20-0309-reasoning.yaml
index 09e3f4b7..7a335e98 100644
--- a/models/xai/grok-4.20-0309-reasoning.yaml
+++ b/models/xai/grok-4.20-0309-reasoning.yaml
@@ -28,7 +28,7 @@ params:
     description: Controls nucleus sampling by limiting generation to tokens within the selected cumulative probability.
     default: 1
     range:
-      min: 0
+      min: 0.01
       max: 1
       step: 0.01
     group: sampling
diff --git a/packages/modelparams-python/src/modelparams/_generated/catalog.json b/packages/modelparams-python/src/modelparams/_generated/catalog.json
index 85e72cf8..832da527 100644
--- a/packages/modelparams-python/src/modelparams/_generated/catalog.json
+++ b/packages/modelparams-python/src/modelparams/_generated/catalog.json
@@ -28943,7 +28943,7 @@
     "authType": "subscription",
     "apiSurface": "openai-responses",
     "model": "gpt-5.3-codex-spark",
-    "status": "active",
+    "status": "retired",
     "params": [
       {
         "path": "reasoning.effort",
@@ -29115,7 +29115,7 @@
     "authType": "subscription",
     "apiSurface": "openai-responses",
     "model": "gpt-5.4-mini",
-    "status": "active",
+    "status": "retired",
     "params": [
       {
         "path": "reasoning.effort",
@@ -29283,7 +29283,7 @@
     "authType": "subscription",
     "apiSurface": "openai-responses",
     "model": "gpt-5.4",
-    "status": "active",
+    "status": "retired",
     "params": [
       {
         "path": "reasoning.effort",
@@ -34037,7 +34037,7 @@
         "type": "number",
         "default": 1,
         "range": {
-          "min": 0,
+          "min": 0.01,
           "max": 1,
           "step": 0.01
         }
@@ -34181,7 +34181,7 @@
         "type": "number",
         "default": 1,
         "range": {
-          "min": 0,
+          "min": 0.01,
           "max": 1,
           "step": 0.01
         }
diff --git a/packages/modelparams-python/src/modelparams/types/xai.py b/packages/modelparams-python/src/modelparams/types/xai.py
index f7f20e38..b6083efa 100644
--- a/packages/modelparams-python/src/modelparams/types/xai.py
+++ b/packages/modelparams-python/src/modelparams/types/xai.py
@@ -15,7 +15,7 @@
     {
         "max_completion_tokens": Annotated[int, Field(ge=1)],
         "temperature": Annotated[float, Field(ge=0, le=2)],
-        "top_p": Annotated[float, Field(ge=0, le=1)],
+        "top_p": Annotated[float, Field(ge=0.01, le=1)],
         "seed": int,
         "stop": str,
         "response_format.type": Literal["text", "json_object", "json_schema"],
@@ -43,7 +43,7 @@
     {
         "max_completion_tokens": Annotated[int, Field(ge=1)],
         "temperature": Annotated[float, Field(ge=0, le=2)],
-        "top_p": Annotated[float, Field(ge=0, le=1)],
+        "top_p": Annotated[float, Field(ge=0.01, le=1)],
         "seed": int,
         "response_format.type": Literal["text", "json_object", "json_schema"],
     },
diff --git a/packages/modelparams/src/generated/data.ts b/packages/modelparams/src/generated/data.ts
index ae1dec6a..018fea5b 100644
--- a/packages/modelparams/src/generated/data.ts
+++ b/packages/modelparams/src/generated/data.ts
@@ -28948,7 +28948,7 @@ const GENERATED_CATALOG = [
     "authType": "subscription",
     "apiSurface": "openai-responses",
     "model": "gpt-5.3-codex-spark",
-    "status": "active",
+    "status": "retired",
     "params": [
       {
         "path": "reasoning.effort",
@@ -29120,7 +29120,7 @@ const GENERATED_CATALOG = [
     "authType": "subscription",
     "apiSurface": "openai-responses",
     "model": "gpt-5.4-mini",
-    "status": "active",
+    "status": "retired",
     "params": [
       {
         "path": "reasoning.effort",
@@ -29288,7 +29288,7 @@ const GENERATED_CATALOG = [
     "authType": "subscription",
     "apiSurface": "openai-responses",
     "model": "gpt-5.4",
-    "status": "active",
+    "status": "retired",
     "params": [
       {
         "path": "reasoning.effort",
@@ -34042,7 +34042,7 @@ const GENERATED_CATALOG = [
         "type": "number",
         "default": 1,
         "range": {
-          "min": 0,
+          "min": 0.01,
           "max": 1,
           "step": 0.01
         }
@@ -34186,7 +34186,7 @@ const GENERATED_CATALOG = [
         "type": "number",
         "default": 1,
         "range": {
-          "min": 0,
+          "min": 0.01,
           "max": 1,
           "step": 0.01
         }