#llm

The US walled off frontier AI. Five days later, an open-weight model beat GPT-5.5. The post-training pipeline is where open-source AI compounds its advantage.

Sakana Fugu is a learned orchestrator that coordinates frontier LLMs (Claude, GPT, Gemini) to beat each one at its own game. A breakdown of the paper, its two variants, and why orchestration may be AI's third scaling axis.

A first-principles breakdown of why open-source language models are reshaping AI — from cost and transparency to sovereignty, competition, and the now-closed performance gap.

Function calling (also called tool use) is a capability that lets an LLM output structured commands — like get_weather(location='Cairo') — which your own code then executes, bridging the gap between what the model says and what it can do.