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Sakana AI

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Monday, 28 September 2026

SAIL: Scaling In-Context Imitation Learning

Sakana AI 42

SAIL is introduced by Sakana AI and the University of Tokyo to improve VLM-based robot trajectory generation using test-time scaling and simulator feedback. Increasing the MCTS search budget from 1 to 45 candidates in simulation raised the average success rate from 25% to 73%. As a result, the approach produces more reliable trajectories by iteratively revising candidates before sending only the selected one to the physical robot.

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