๐ก The era of agonizing over which single LLM is "the best" might be coming to an end.
Title: Sakana Fugu Technical Report
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Sakana AI's Fugu is a commander (orchestrator) model that marshals a team of frontier LLMs and automatically assembles the best lineup for each task. Here are the three highlights worth knowing.
๐งญ A learned conductor
Fugu adds a lightweight selection head on top of a pretrained backbone and picks the best worker model directly from logits over hidden states. Because it skips autoregressive decoding, it keeps latency on par with calling a single frontier model โ an elegant trick.
๐ธ๏ธ Dynamically writing its own workflows (Fugu-Ultra)
The high-end variant writes out full agentic workflows in natural language, defining task decomposition, subtask allocation, and targeted communication strategies. It composes multi-agent topologies โ debate, sequential chaining, tree structures โ of up to 5 steps, tailored per problem.
๐ Beating any single model
73.7 on SWE-Bench Pro (above Claude Opus 4.8's 69.2), 95.5 on GPQA-Diamond, 93.2 on LiveCodeBench โ state-of-the-art among publicly accessible models. In agentic coding it lands a 5โ6% relative gain, described as a full "generational" improvement.
Reaching the frontier through smart orchestration rather than sheer scale โ a fresh new scaling axis.
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