LLM Reasoning Failures Part 1: Structural Limitations -- Scaling Won't Fix These
Reversal Curse, Counting, Compositional Reasoning — fundamental Transformer failures tested across 7 models.

LLM Reasoning Failures Part 1: Structural Limitations -- Scaling Won't Fix These
This is the first installment in our series dissecting LLM reasoning failures. In this post, we cover three fundamental limitations that persist no matter how much you scale the model or expand the training data.
- The Reversal Curse
- Counting Failures
- The Compositional Reasoning Wall
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