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title: "Models"
canonical: "https://hub.freewheel.tv/space/BC/114032940/Models"
format: markdown
---
Overview Please reference  GitHub  to view which fields are supported in delivery models and modifiers. Models allow for a more intuitive and controlled approach to the way bidding strategies and delivery distribution operate. This is done by creating certain parameters in a table offline, and then uploading to Buyer Cloud through the format of a file. Models create the ability to implement complex strategies and optimize delivery performance in a simplified workflow.  Bid Models Bid Models enable building a more complex and custom bidding strategy. These models are built offline as a data table and then uploaded to Buyer Cloud. The data table must define specific targeting combinations and expressions, and their associated bids or bid modifiers. Once applied to  campaigns , they are used to make bidding decisions in real time. Bid models are a flexible way to create more complex bidding strategies than bid modifiers, without the use of a custom  bidding agent . An example use case for building a bid model can be based on data from Buyer Cloud logs (such as wins or conversions). The model could use a combination of bid request fields and determine an associated bid or bid multiplier. Delivery Models Delivery models create the ability to finely control the distribution of programmatic ads separately from the prices that will be bid for those ads. This unique capability dynamically shifts the budget according to a set of instructions defined during the creation of the model while ensuring full delivery. With Buyer Cloud's flexible suite of "Bring-Your-Own-Algorithm" tools, delivery models unlock a whole new dimension of optimization, performance, and efficiency. See how to create both  Bid Models  and  Delivery Models . Accessing Models To access the Models page, navigate to  Trafficking  >  Models  at the top of the screen. Models List View List View Fields Column Name Description Name & ID Name and associated ID of the model. Archived Either "Yes" or "no". Models can be turned active at any time after archiving. Alt ID Alternative ID used for reporting in third-party systems.