According to God of Prompt on Twitter, LobeHub has introduced its L4 agent harness, marking a significant advancement in collaborative AI. The platform enables users to build and coordinate teams of agent coworkers for complex tasks, signaling the end of L3 agents and the emergence of L4 capabilities. As reported by the official LobeHub announcement, the service is currently invite-only, offering incentives such as credits for new users and referrals. This launch highlights evolving trends in multi-agent systems and presents new business opportunities for organizations seeking scalable AI-driven workflows.

According to Anthropic (@AnthropicAI), long-running AI agents continue to face technical challenges when operating across multiple context windows, which can limit their effectiveness in complex, persistent tasks. In a recent engineering blog post, Anthropic details how their team drew inspiration from human engineering workflows to design a more robust agent harness. This approach aims to enhance the reliability and efficiency of AI agents handling extended sequences of information, addressing key bottlenecks for enterprises deploying autonomous AI solutions at scale. The improvements are expected to unlock new business opportunities in AI-powered automation, especially for sectors requiring continuous, context-aware processing. (Source: Anthropic Engineering Blog, Nov 26, 2025)