# Pricing Models

Different automated market makers (AMMs) in the market provide different on-chain pricing models. The most common type is the constant product (Uniswap V2) function, but other functions are used as well. Balancer offers constant mean pricing. mStable uses constant sum. Curve uses a hybrid function.

On the other hand, most private market makers do their pricing off-chain. Their pricing is not governed by a formula alone.

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