Meta CEO Mark Zuckerberg said AI agent development is proceeding slower than expected. He made the comment during a recent briefing, noting that creating agents that can act autonomously involves complex technical challenges. Zuckerberg said the pace has slowed because of the need for additional testing and larger datasets. He added that the team is prioritizing reliability before broader deployment. Meta has adjusted internal timelines but has not released a revised public schedule. The company continues to allocate considerable engineering resources to AI projects. The timeline for a full rollout remains uncertain as Meta evaluates progress.