NVIDIA/NTU/MIT open-source SoL-Pi: ~49% fewer tokens for Pi agent
NVIDIA, NTU, and MIT released SoL-Pi (MIT), an opt-in extension for the open-source Pi coding agent that cuts EdgeBench token traffic 44.7–49% and API cost about one third versus base Pi, with scores within ~6%. Four harness-layer mechanisms—Action Fusion, Online Context Compact, ObservationPack, and Evidence-Preserving Reducer—ship on GitHub; paper at arXiv:2609.20519.