Did Baldwin have to pay anything?

There are civil lawsuits pending. The standards of liability are a lot different than the standard for guilt in a criminal trial. so he may have to pay.

"Baldwin and other producers still face civil lawsuits from Hutchins' parents and sister, and from crew members. Hutchins' widower and young son had agreed to settle their own lawsuit about a year after the shooting, with the widower becoming an executive producer on the then-unfinished film."

Rust’ Producers Still Owe Money to Halyna Hutchins’ Widower and Son, a Year After Settlement
The fatal accident has led to a tangle of litigation involving Alec Baldwin, producers, the crew and insurance companies.
The producers of the Alec Baldwin film “Rust” are nine months late in paying the widower and son of cinematographer Halyna Hutchins, who was killed in a gun accident on set in 2021, according to a recent court filing.

Baldwin and the other producers announced a settlement of the family’s wrongful death lawsuit in October 2022. The terms, finalized in March 2023, provided for completion of “Rust” and payments to the Hutchins estate, including insurance funds and a portion of the estimated $200M profits.

Rust Movie Productions LLC was supposed to make the full guaranteed payments by June 13, 2023, according to a Feb. 7 filing from the estate’s attorneys.