Why do LLMs always estimate task time like sequential human work?
ColleenMBrady · x · 2026-09-24
Developer Colleen Brady flags a recurring pain point when planning with OpenAI and Claude models: their time estimates assume human-style sequential work — one task, then the next — ignoring parallelization.
Her current workaround is essentially giving the model a pep talk, which she admits wastes time and tokens; she's asking the community for a better fix.
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