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Jun 22, 2026

Tokyo's Sakana AI launches Fugu Ultra, multi-model orchestration system matching frontier AI performance

Sakana AI unveiled Fugu and Fugu Ultra on June 22, 2026, a multi-agent orchestration system that coordinates multiple AI models to match performance of leading models like Anthropic's Fable 5 and Mythos without training its own frontier model. The approach aims to reduce single-vendor dependency in enterprise AI deployments.

Jun 22, 2026·8 sources
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Top claims

  • ▪Sakana Fugu's architecture is grounded in two ICLR 2026 research papers from Sakana AI titled TRINITY and Conductor.
  • ▪Fugu Ultra scored 95.5 on GPQA-Diamond, outperforming the Claude Mythos Preview score of 94.6.
  • ▪Fugu Ultra scored 73.7 on the SWE-Bench Pro benchmark, outperforming Claude Opus 4.8's score of 69.2 and GPT-5.5's score of 58.6.

Topics

AI foundation modelsBusiness & enterprise AIAI agentsMixture of experts (MoE)AI startups

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