1/3 We just landed #1 on DeepResearch Bench II without building a single new agent.

AI21 Labs announced achieving the #1 ranking on DeepResearch Bench II without developing any new agents, suggesting they improved performance through optimization of existing systems or methodology rather than architectural innovation. This likely demonstrates advances in prompt engineering, fine-tuning, or inference techniques applied to their current AI capabilities.

Source: AI21 Labs (X) | 2026-06-24