Trinity: An Evolved LLM Coordinator

Sakana AI

Sakana AI developed TRINITY, a coordinator system that orchestrates multiple specialized AI models at test-time without modifying their weights, using an evolutionary algorithm to optimize a 20K-parameter routing mechanism. The system achieved an 86.2% pass@1 score on LiveCodeBench and generalized zero-shot to four unseen tasks while outperforming individual models including GPT-5 and Claude-4-Sonnet. This approach replaces the industry focus on scaling single monolithic models with collaborative multi-model systems that combine complementary strengths through dynamic task assignment.