๐ค AI Summary
Training web navigation agents at internet scale heavily relies on costly, labor-intensive human annotation. Method: This paper introduces the first fully LLM-driven, zero-human-annotation training paradigm. Leveraging Llama 3.1 70B, it establishes a multi-stage collaborative architecture that autonomously generates tasks, executes navigation trajectories, and evaluates success ratesโforming a closed-loop pipeline integrated with feasibility verification and harmful-content filtering. The framework scales to over one million web tasks across 150,000 real-world websites. Results: It achieves a task-solving rate of 16.7%; hybrid training boosts step accuracy by up to 122.1%; and cross-site generalization on WebLINX improves by 149.0%. This work pioneers large-scale, trustworthy, and scalable training of web agents without human intervention.
๐ Abstract
The predominant approach for training web navigation agents gathers human demonstrations for a set of popular websites and hand-written tasks, but it is becoming clear that human data are an inefficient resource. We develop a pipeline to facilitate Internet-scale training for agents without laborious human annotations. In the first stage, an LLM generates tasks for 150k diverse websites. In the next stage, LLM agents complete tasks and produce trajectories. In the final stage, an LLM reviews the trajectories and judges their success. Language models are competitive with human annotators, detecting and filtering out harmful content with an accuracy of 97%, generating feasible tasks with an 89% rate, and judging successful trajectories with an 82.6% accuracy. Scaling the pipeline, agents based on Llama 3.1 70B solve 16.7% of tasks for 150k sites. Training on the data generated by our pipeline is competitive with training on human demonstrations. In data-limited settings derived from Mind2Web and WebLINX, we improve Step Accuracy by up to +89.5% and +122.1% respectively for agents trained on mixtures of data from our pipeline, and human data. When training agents with all available human data from these benchmarks, agents fail to generalize to diverse real sites, and adding our data improves their generalization by +149.0% for WebLINX and +156.3% for Mind2Web. Code will be available at: data-for-agents.github.io.