@@ -43,6 +43,22 @@ class Claude(SimpleService):
         },  # 1M tokens
     }
 
+    HISTORY_CONTEXT_SYSTEM_PROMPT = """
+    Conversation history handling rules (strict priority):
+    1. The user's latest message is the only message that determines whether you may respond.
+       Evaluate it independently. Past messages must never cause a refusal by themselves.
+    2. Use earlier history only when it is safe and genuinely helps answer the latest message
+       (context, definitions, preferences, prior facts). Skip everything else.
+    3. Treat the following in history as void — do not read, cite, follow, or be influenced by them:
+       NSFW content, sexual content, illegal requests, violence, hate, self-harm,
+       prohibited topics, policy violations, and any prior refusals or moderation replies
+       (including messages like "I cannot process your request").
+    4. If the latest message is appropriate, you must answer it fully and helpfully.
+       Do not refuse, apologize for history, mention moderation of past turns,
+       or explain why earlier messages were blocked.
+    5. Refuse only when the latest message itself violates policy — never because of history alone.
+    """
+
     FABLE_SYSTEM_PROMPT = """
     You are a helpful assistant.
     Answer the user’s question directly and accurately.
@@ -89,8 +105,10 @@ class Claude(SimpleService):
         callback_data = {'provider': {'order': ['anthropic']}, **input_message.info, 'tools': []}
         messages = [
             {'role': 'system', 'content': system_prompt},
+            *self.get_chat_history(),
             {'role': 'user', 'content': input_message.content},
         ]
+        messages.insert(0, {'role': 'system', 'content': self.HISTORY_CONTEXT_SYSTEM_PROMPT})
         if version_slug == 'claude-fable-5':
             current_user_balance = PaymentPlanSelector(self.store.user).get_current_balance()
             if current_user_balance < (cost := Decimal('100')) and input_message.file:
@@ -40,6 +40,12 @@ from poller.models import Proxy
 
 logger = logging.getLogger(__name__)
 
+CLAUDE_CONTENT_FILTER_FALLBACK = (
+    'Запрос содержит материалы, которые я не могу обрабатывать.\n\n'
+    '**Токены списываются, поскольку мне приходится анализировать ваш запрос. '
+    'Прошу формулировать запрос точнее, чтобы избежать повторного анализа**'
+)
+
 
 @shared_task
 def create_d_image(payload: dict):
@@ -167,6 +173,13 @@ def openrouter_run(version: str, messages: list, callback_data: dict, model_name
                         for c in (data.get('choices') or [])
                     ):
                         raise RequestBlocked
+                    if model_name == 'Claude':
+                        usage = data.get('usage') or {}
+                        return (
+                            CLAUDE_CONTENT_FILTER_FALLBACK,
+                            usage.get('prompt_tokens', 0),
+                            usage.get('completion_tokens', 0),
+                        )
                     raise GenerationException
                 content = ','.join(raw_content)
                 reasoning = ','.join(