Technique

Scratchpad

Explicit working-memory section a model writes into before producing its final answer.

Definition

Scratchpad prompting reserves part of the model's output for visible work — calculations, plans, notes — before the final answer. It generalises chain-of-thought and has become the basis for reasoning-mode models that emit a hidden thinking block.

Common use cases

  • Math
  • Complex planning
  • Audit trails

Related terms

    Scratchpad — AI Glossary | Railwail