Hallucinations cannot be solved, argues Burkov: a solvable model would be untrainable

burkov · x · 2026-10-10

Responding to whether the hallucination problem has been solved, Andriy Burkov argues no—and it can't be. His reasoning: if hallucinations were solvable by the model alone (without external data like web search at inference), the model would become impossible to train. Probabilistic outputs can't guarantee factuality within the training objective itself; the real fix lies in external verification sources.

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