LLM training engineer's lament: benchmarks, data, tokenizers, and numeric stability will kill you
auto_grad_ · x · 2026-09-03
- A training engineer's tongue-in-cheek cascade of LLM training pain: if benchmarks don't kill you, data will — then chat templates, tokenizers, matmuls, and numeric stability.
- A short joke that resonates with pretraining engineers over the fussy, fatal pitfalls at every layer of the stack.
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