Later update: 1,022. An additional 3,333 votes have been counted and Stevens pulled back 39 votes.
Per Sean Cockerham at the Anchorage Daily News, the ballots counted today:
About 510 questioned ballots from Southeast, the Peninsula and Southwest Alaska
About 5,180 absentee and questioned ballots from Mat-Su
Questioned, absentee ballots from Richardson Highway and the Interior
About 3,600 absentee and questioned ballots from Western and Northwest Alaska, and North Slope
Monday the extra Richardson Highway ballots will be counted, and Tuesday another 24,000 or so ballots will be counted from Anchorage, Southeast, Kenai Peninsula and Southwest Alaska.