Claude Code and OpenAI Codex Fail at Task Time Estimation
August 31, 2026
A new study reveals that leading coding agents, including Claude Code and OpenAI Codex, are significantly inaccurate when estimating task duration. This limitation impacts the reliability of long-running autonomous agent workflows.
HOW THIS AFFECTS YOU
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builderYou cannot rely on current coding agents to provide accurate timelines for autonomous task scheduling.