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Alejandro Aristizabal

Karma: 156

Les­sons from build­ing an au­to­mated re­search scaffold

Alejandro Aristizabal, Josh Hills, Dewi Gould, Angel Martinez, Falko Galperin, Denis Federico Lim and Aleksandr Bowkis
2 Oct 2026 10:36 UTC
58 points
4 comments4 min readLW link

Au­to­mated al­ign­ment runs are hard to study!

Alejandro Aristizabal, draganover, Aleksandr Bowkis and Cameron Holmes
13 Aug 2026 15:04 UTC
72 points
4 comments9 min readLW link

De­bate with Self-Play Best-of-N Optimization

Dewi Gould, Sam Martin, Alejandro Aristizabal, Simon Marshall and Jacob Pfau
9 Jul 2026 15:29 UTC
53 points
2 comments14 min readLW link

Ex­plor­ing Shard-like Be­hav­ior: Em­piri­cal In­sights into Con­tex­tual De­ci­sion-Mak­ing in RL Agents

Alejandro Aristizabal29 Sep 2024 0:32 UTC
6 points
0 comments15 min readLW link