AI Breakthrough Briefs

Sakana AI Launches 'Ultra Deep Research' Agent Marlin

Sakana AI Launches 'Ultra Deep Research' Agent Marlin

Key Questions

What is Sakana AI's Marlin agent?

Marlin is Sakana AI's 'Ultra Deep Research' agent designed for long-horizon reasoning using AB-MCTS. It generates detailed 100+ page reports in 8 hours, shifting focus from speed to depth in AI research for enterprise use.

How does Marlin differ from typical AI research tools?

Unlike speed-oriented tools, Marlin emphasizes depth by producing extensive reports through advanced reasoning methods. This makes it suitable for complex business applications requiring thorough analysis.

Which company launched the Marlin agent?

Tokyo-based startup Sakana AI launched Marlin as its ultra deep research agent. The tool represents a concrete breakthrough in applied AI for generating in-depth reports.

Sakana AI's Marlin uses AB-MCTS for long-horizon reasoning, generating 100+ page reports in 8 hours. A shift from speed to depth in AI research, with enterprise applications. Concrete breakthrough in applied AI.

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Updated Jun 17, 2026