Advisor tool in public beta — executor + advisor model integration

AI Impact Summary

The launch of the advisor tool represents a significant shift in our approach to long-horizon agentic workloads. By pairing a faster executor model with a higher-intelligence advisor model, we're aiming to achieve advisor-solo quality while maintaining efficient token generation. This beta release allows us to test the integration and performance of this new architecture, particularly focusing on the strategic guidance provided by the advisor model during generation.