Equation 8 · Part 1 · From Autocomplete to Delegation: The Technical History Behind OpenAI Codex
Symbol s_t
What this part means
the environment e executes it against state.
Its job in the formula
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol s_t→Article meaning
Where the article explains it
where the model policy chooses an action, environment E executes it against state , and the result becomes the next observation.
The passage around this formula
where the model policy chooses an action, environment E executes it against state , and the result becomes the next observation. This closes a feedback loop absent from one-shot completion.
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.
Open the illustrated subscripts: which member of a family? guide →
See this notation across published equations →
Sources cited in the article section
- [8] ReAct: Synergizing Reasoning and Acting in Language Models ↗
- [9] Toolformer: Language Models Can Teach Themselves to Use Tools ↗
These citations provide research context; check each source for the exact claim it supports.