Tinker Interpretability

by Kondasamy Jayaraman · drawn with Colorfigures by April Zhu

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Please contact the … · not steered

Chapter 5 of 7

Steering

If information sits in the residual stream, can the team push it there? They build a direction from two sets of Larkspur prompts.

This chapter: Can you change what a model says without changing its weights?

About this chapter

You will learn

  • How a steering direction is made from two sets of prompts
  • What adding it does, and what too much does

Words you’ll meet

Steering
Adding a vector to the model’s residual stream during a run to push its output one way.
Direction
A vector found as the average of one set of runs minus the average of another.

Step 1 of 5

pushes a model without retraining it. The : shipping prompts’ average activation minus billing prompts’.

Build the direction.

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