Alignment midtraining does not reliably generalize desired model behavior

Tests at up to 110 billion parameters found that midtraining effects were fragile and could not substitute for explicit behavioral demonstrations.

Industry
Sid Baines · Jonathan Bostock · Maria Angelica Martinez · Andrew Draganov · David Africa · Daniel Tan

Arcadia Impact · Resolution

Research Digest··2 min read
Baines et al.

The authors evaluated assumptions behind alignment midtraining, or AMT: continued pretraining on large collections of alignment-relevant text before later finetuning.

Why this paper

From Arcadia Impact and Resolution

In one line

Midtraining steers model motivations in simple ambiguous settings, but a few percent of conflicting finetuning data erases its effects.

What we could check

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  • ·No stated limitations found
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