What are the four main cloud deployment models that are available these days?

pubic cloud private cloud and hybrid cloud

As previously mentioned:

Public cloud 

Private cloud

Hybrid cloud

and i would add a fourth one which is the community cloud

Public cloud 

Private cloud

Hybrid cloud

Community cloud

Hi,

Currently there multiple deployments of cloud:

• Public Cloud
• Private Cloud
• Hybrid Cloud
• Community Cloud
• Distributed Cloud
• InterCloud
• MultiCloud

 HTH

Best Regards,