diff --git a/src/celeste/modalities/text/providers/groq/models.py b/src/celeste/modalities/text/providers/groq/models.py
index 9e23b5d..b5db769 100644
--- a/src/celeste/modalities/text/providers/groq/models.py
+++ b/src/celeste/modalities/text/providers/groq/models.py
@@ -87,20 +87,6 @@
             TextParameter.TOOLS: ToolSupport(tools=[]),
         },
     ),
-    Model(
-        id="meta-llama/llama-4-maverick-17b-128e-instruct",
-        provider=Provider.GROQ,
-        display_name="Llama 4 Maverick 17B",
-        operations={Modality.TEXT: {Operation.GENERATE, Operation.ANALYZE}},
-        streaming=True,
-        parameter_constraints={
-            Parameter.TEMPERATURE: Range(min=0.0, max=2.0, step=0.01),
-            Parameter.MAX_TOKENS: Range(min=1, max=8192, step=1),
-            TextParameter.OUTPUT_SCHEMA: Schema(),
-            TextParameter.IMAGE: ImagesConstraint(),
-            TextParameter.TOOLS: ToolSupport(tools=[]),
-        },
-    ),
     Model(
         id="openai/gpt-oss-20b",
         provider=Provider.GROQ,
diff --git a/src/celeste/modalities/text/providers/openai/models.py b/src/celeste/modalities/text/providers/openai/models.py
index 2c352b3..ef48067 100644
--- a/src/celeste/modalities/text/providers/openai/models.py
+++ b/src/celeste/modalities/text/providers/openai/models.py
@@ -41,44 +41,6 @@
             TextParameter.IMAGE: ImagesConstraint(),
         },
     ),
-    Model(
-        id="gpt-4-turbo",
-        provider=Provider.OPENAI,
-        display_name="GPT-4 Turbo",
-        operations={Modality.TEXT: {Operation.GENERATE, Operation.ANALYZE}},
-        streaming=True,
-        parameter_constraints={
-            Parameter.TEMPERATURE: Range(min=0.0, max=2.0),
-            Parameter.MAX_TOKENS: Range(min=1, max=4096),
-            TextParameter.OUTPUT_SCHEMA: Schema(),
-            TextParameter.TOOLS: ToolSupport(tools=[]),
-            TextParameter.IMAGE: ImagesConstraint(),
-        },
-    ),
-    Model(
-        id="gpt-4",
-        provider=Provider.OPENAI,
-        display_name="GPT-4",
-        operations={Modality.TEXT: {Operation.GENERATE}},
-        streaming=True,
-        parameter_constraints={
-            Parameter.TEMPERATURE: Range(min=0.0, max=2.0),
-            Parameter.MAX_TOKENS: Range(min=1, max=8192),
-            TextParameter.TOOLS: ToolSupport(tools=[]),
-        },
-    ),
-    Model(
-        id="gpt-3.5-turbo",
-        provider=Provider.OPENAI,
-        display_name="GPT-3.5 Turbo",
-        operations={Modality.TEXT: {Operation.GENERATE}},
-        streaming=True,
-        parameter_constraints={
-            Parameter.TEMPERATURE: Range(min=0.0, max=2.0),
-            Parameter.MAX_TOKENS: Range(min=1, max=4096),
-            TextParameter.TOOLS: ToolSupport(tools=[]),
-        },
-    ),
     Model(
         id="gpt-5",
         provider=Provider.OPENAI,
diff --git a/src/celeste/modalities/text/providers/xai/models.py b/src/celeste/modalities/text/providers/xai/models.py
index 5d26ecb..f7b50f7 100644
--- a/src/celeste/modalities/text/providers/xai/models.py
+++ b/src/celeste/modalities/text/providers/xai/models.py
@@ -2,7 +2,6 @@
 
 from celeste.constraints import (
     Choice,
-    ImagesConstraint,
     Range,
     Schema,
     ToolSupport,
@@ -119,17 +118,4 @@
             TextParameter.OUTPUT_SCHEMA: Schema(),
         },
     ),
-    Model(
-        id="grok-2-vision-1212",
-        provider=Provider.XAI,
-        display_name="Grok 2 Vision",
-        operations={Modality.TEXT: {Operation.GENERATE, Operation.ANALYZE}},
-        streaming=True,
-        parameter_constraints={
-            Parameter.TEMPERATURE: Range(min=0.0, max=2.0),
-            Parameter.MAX_TOKENS: Range(min=1, max=32768),
-            TextParameter.TOOLS: ToolSupport(tools=[]),
-            TextParameter.IMAGE: ImagesConstraint(),
-        },
-    ),
 ]