Do node operators for chainlink pay the gas for the transaction or does the intiator?

Question

With the chain link node their are two transactions, the request and the response. What portion of the gas fees are paid by the node?

Answer 1

As you mentioned, there are 2 transactions with a Chainlink node. 1 with the request, and 1 with the response.

The requester pays the request, the node pays the response.

More info: The requester submits a transaction that emits a log to the chain. The log is then read off-chain by a chainlink node, who then performs whatever actions specified in the log. Once the node has the data, it calls the fulfill or callback function in a 2nd transaction with the data.