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Equation 48 · Part 1 · Why Coding Agents Fail: Long-Horizon Reliability in OpenAI Codex

Symbol p_i

pip_i
pip_i

What this part means

pip_i is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

pip_i is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

Better models raise many pip_i terms. Longer context can reduce some state loss. More tokens permit wider search. None substitutes for an environment that reveals errors and constrains consequences.

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Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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