
Research
World Rehearsal Lets LLM Agents Learn Without an Environment
A new training method called EnvACE lets large language model agents practice inside their own heads instead of relying on external environments. The approach, described in a paper submitted to arXiv on 6 Aug 2026, replaces real-world interaction during training with what the authors call world rehearsal. The result is a policy that internalizes how actions change the world, and it performs strongly across four benchmarks.
Aug 74 minNeura News