NVIDIA Introduces SoL-Pi: Auto-Research Loops That Cut Coding Agent Token Traffic by Up to 49%

NVIDIA, NTU, and MIT researchers released SoL-Pi, an efficiency extension for the Pi coding agent that reduces token traffic by up to 49% and API costs by about 33% while maintaining performance on GPT-5.6 Sol and Opus 5. SoL-Pi automates harness-layer optimizations through auto-research loops and is available as an MIT-licensed GitHub extension compatible with Pi 0.85.1 and Node.js 22.19+.