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Robotics

RoboTALES: Learning Reasoning-Guided Robot Policies via Task-Aligned Simulated Futures

Hanan Gani, Tejal Kulkarni, Madhoolika Chodavarapu, Nicklas Hansen, Manmohan Chandraker

Featured July 10, 2026

Original Paper

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Simply

By using a smart planner to break down big tasks and a critic to check if imagined futures match the goal, robots learn to imagine and act more purposefully, making fewer mistakes in complex tasks.

In depth
The paper introduces RoboTALES, a framework that tightly integrates hierarchical reasoning with video generation and action learning for long-horizon robotic manipulation. It achieves this by using an LLM-based planner to decompose complex tasks into sub-goals, which then guide a video generator's imagination. A VLM-based critic provides reward-based feedback to ensure these imagined futures are semantically aligned with the task, and this feedback directly refines the video generator's internal representations during a single-stage joint training process with the action policy.

Key Takeaways

  • 1
    The framework introduces a hierarchical LLM-based planner that breaks down complex tasks into ordered sub-goals, explicitly conditioning the video generator to produce structured, milestone-driven future simulations.
  • 2
    A VLM-based critic evaluates these imagined futures against the task instruction, providing reward-based feedback that directly steers the video generator's latent dynamics towards semantically aligned and purposeful representations.
  • 3
    RoboTALES employs a single-stage joint training strategy, allowing action-level gradients to flow back into the video generator's decoder layers, ensuring its internal representations are optimized for both visual prediction and precise downstream control.

Conceptual Flow

HIGH LEVEL
1
Methodology: Smart Robot Imagination

The robot uses a smart planner to break down big tasks, then imagines what will happen, and a checker makes sure its imagination matches the goal, helping it move correctly.

Big Task Idea
Break Down & Imagine
Checked Future Steps
Robot Actions
2
Results: Better Robot Performance

This new way of thinking helps robots complete tricky tasks much more often and smoothly than older methods, even with less practice.

Old Robot Method
New Robot Method
Compare Success
Many Failed Tasks
Many Completed Tasks