Mirrai Careers

Research Scientist, Scaling RL

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Menlo Park, CA; Montreal, Canada Full-time Posted 2w ago
WHAT YOU'LL DO * Design experiments to understand how RL performance scales with compute, model size, data, and reward quality, building on work such as ScaleRL * Develop better RL algorithms, spanning policy optimization, advantage estimation, exploration, and credit assignment for long-horizon RL tasks * Build adaptive sampling and curriculum methods that adjust task difficulty, problem selection, and the number of rollouts as models improve * Study bias and stability during RL training, including importance-sampling corrections and methods to tackle policy staleness and…

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