Fixed-Point Reasoners: Stable and Adaptive Deep Looped Transformers

Published
Source
arXiv
Paper number
446
Field
AI / General
arXiv ID
2606.18206

Key points

  • It solves signal propagation problems that grow with loop depth by using pre-norm and residual scaling.
  • It introduces fixed-point convergence through an end-to-end halting mechanism, so no external halting module is needed.
  • It guarantees adaptive computation, with the number of iterations automatically adjusted to task difficulty.
  • On Sudoku Extreme, it matches TRM performance with 10 percentage points higher accuracy and about 27 percent less compute.
  • It shows consistent gains on combinatorial reasoning benchmarks such as Maze, state tracking, and ARC-AGI.
  • It provides theoretical justification for the halting decision based on mathematical fixed-point theorems.

Paper links

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