Daksh, one of the co-founders of Greptile, describes the advancements in their code review system with the introduction of version 3 (v3), which has significantly improved performance over the previous version (v2). The previous version operated on a rigid flowchart model that limited its ability to incorporate new information dynamically, whereas v3 adopts a "detective" approach, allowing it to run in loops and make recursive searches through the codebase. This flexibility enables v3 to conduct more thorough investigations by following nested function calls and utilizing tools such as codebase search and learned rules. As a result, v3 demonstrates superior accuracy and efficiency, with a 70.5% higher action rate and a more efficient use of resources, including a 75% reduction in inference costs for self-hosted clients due to improved caching and higher cache hit rates. The new system's ability to provide targeted comments and resolve inconsistencies has led to a more precise code review process, increasing the acceptance rate and overall effectiveness of the tool.