Update region-availability-maas.md

Author: ssalgadodev

articles/ai-studio/includes/region-availability-maas.md

@@ -105,3 +105,9 @@ AI21-Jamba-1.5-Large | [Microsoft Managed countries/regions](/partner-center/mar
 |Model  |Offer Availability Region  | Hub/Project Region for Deployment  | Hub/Project Region for Fine tuning  |
 |---------|---------|---------|---------|
 Bria-2.3-Fast   | [Microsoft Managed Countries](/partner-center/marketplace/tax-details-marketplace#microsoft-managed-countriesregions)  | East US 2   | Not available       |
+
+### Stability AI models
+
+|Model  |Offer Availability Region  | Hub/Project Region for Deployment  | Hub/Project Region for Fine tuning  |
+|---------|---------|---------|---------|
+Stable Diffusion 3.5 Large <br> Stable Image Core <br> Stable Image Ultra   | [Microsoft Managed Countries](/partner-center/marketplace/tax-details-marketplace#microsoft-managed-countriesregions)  | East US <br> East US 2 <br> North Central US <br> South Central US <br> West US <br> West US 3   | Not available       |