diff --git a/backend/models.py b/backend/models.py
index 53e77d3..d60731e 100644
--- a/backend/models.py
+++ b/backend/models.py
@@ -31,7 +31,7 @@ class BausteineCreateRequest(BaseModel):
     provider: ProviderType = "claude"
     source_type: SourceType = "thema"
     source_ort: str = Field(default="", max_length=2000)
-    ab_phase: int | None = Field(default=None, ge=1, le=5)  # Re-Run ab grober Phase (1 Inventar … 5 Fragen); None = Resume/Fortsetzen ohne Löschen
+    ab_phase: int | None = Field(default=None, ge=1, le=6)  # Re-Run ab grober Phase (1 Inventar … 6 Grafiken); None = Resume/Fortsetzen ohne Löschen
 
 
 class BausteineStep(BaseModel):