Researcher Reflects on AI Evaluation Limits Without Frontier Model Access

sethlazar · x · 2026-08-01

Addressing recent controversies over AI evaluation reports, the author explained the decision to include 'sol' while excluding 'fable' in the Codex harness, citing concerns that the latter might be 'nerfed'.

He noted that it is difficult to track AI progress accurately when researchers lack access to today's frontier models. He emphasized that building robust evaluation methodology aims to make broad assertions precise and testable, rather than forming conclusive judgments about what is fundamentally possible. Thus, one shouldn't draw overly broad conclusions from a single experiment.

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