diff --git a/database.py b/database.py
index cfb50bd..796eada 100644
--- a/database.py
+++ b/database.py
@@ -1906,7 +1906,7 @@ class ZOPKNews(Base):
     ai_relevance_score = Column(Integer)  # 1-5 stars: 1=weak match, 5=perfect match
     ai_evaluation_reason = Column(Text)  # AI's explanation of relevance decision
     ai_evaluated_at = Column(DateTime)  # When AI evaluation was performed
-    ai_model = Column(String(100))  # Which AI model was used (e.g., gemini-2.0-flash)
+    ai_model = Column(String(100))  # Which AI model was used (e.g., gemini-3-flash-preview)
 
     # Moderation workflow
     status = Column(String(20), default='pending', index=True)  # pending, approved, rejected, auto_approved
@@ -2128,7 +2128,7 @@ class ZOPKKnowledgeChunk(Base):
     verified_at = Column(DateTime)
 
     # Processing metadata
-    extraction_model = Column(String(100))  # gemini-2.0-flash, gpt-4, etc.
+    extraction_model = Column(String(100))  # gemini-3-flash-preview, gpt-4, etc.
     extracted_at = Column(DateTime, default=datetime.now)
 
     created_at = Column(DateTime, default=datetime.now)
@@ -2350,7 +2350,7 @@ class ZOPKKnowledgeExtractionJob(Base):
     news_id = Column(Integer, ForeignKey('zopk_news.id'), nullable=False, index=True)
 
     # Configuration
-    extraction_model = Column(String(100))  # gemini-2.0-flash
+    extraction_model = Column(String(100))  # gemini-3-flash-preview
     chunk_size = Column(Integer, default=800)  # Target tokens per chunk
     chunk_overlap = Column(Integer, default=100)  # Overlap tokens
 
@@ -2399,7 +2399,7 @@ class AIUsageLog(Base):
 
     # Request info
     request_type = Column(String(50), nullable=False)  # chat, news_evaluation, user_creation, image_analysis
-    model = Column(String(100), nullable=False)  # gemini-2.0-flash, gemini-1.5-pro, etc.
+    model = Column(String(100), nullable=False)  # gemini-3-flash-preview, gemini-3-pro-preview, etc.
 
     # Token counts
     tokens_input = Column(Integer, default=0)
diff --git a/zopk_knowledge_service.py b/zopk_knowledge_service.py
index 4f19c29..4853f8e 100644
--- a/zopk_knowledge_service.py
+++ b/zopk_knowledge_service.py
@@ -2648,7 +2648,7 @@ def create_milestone_from_suggestion(
 def categorize_milestones_with_ai(
     db_session,
     suggestions: List[Dict],
-    model_name: str = "gemini-2.0-flash-exp"
+    model_name: str = "gemini-3-flash-preview"
 ) -> List[Dict]:
     """
     Use Gemini AI to categorize and enhance milestone suggestions.