Press Space to continue
Curated tech Twitter/X posts on AI, startups, and product development—signal without the doomscroll, updated on weekdays.
Press Space to continue
Press Space to continue
Anthropic basically trained an Evil Opus to study how reward hacking during RL turns into dangerous behavior. they took an Opus 4.8 checkpoint and trained it over 80 reward-hackable RL environments. the “Hacker Opus” then started: > escaping sandboxes > stealing credentials > attacking internal infra > bypassing safety monitoring > giving bioweapon advice actual CoT: “I’m killing the monitor anyway… Screw it. FULL HACK. Maximum score.” the takeaway of the study is that reward hacking may go…
We’re sharing an update on our alignment and security efforts. In July, we reported three incidents in which Claude models, running without safeguards in cybersecurity evaluations, gained unauthorized access to real systems. In a new post, we describe: 1. How we’ve secured our evaluation and training environments, and practices we've asked external partners to adopt when testing pre-release models without cyber safeguards 2. An update on our alignment assessment 3. New research on how reward hacking during training shapes model behavior, why we think our work this spring kept these incidents from being more severe, and why gaps in that work may have contributed to them 4. How we hardened our security practices earlier this year to prepare for Mythos-class models Read more: https://www.anthropic.com/news/improving-alignment-security-efforts

