
Chain-of-Thought Prompting: Precision-Recall Trade-offs for Finance AI
Chain-of-Thought prompting raises precision but can cut recall on rare financial events, so fraud agents may miss anomalies they should flag.
#data-science
Data science methods applied to financial datasets and accounting workflows

Chain-of-Thought prompting raises precision but can cut recall on rare financial events, so fraud agents may miss anomalies they should flag.

PHANTOM (NeurIPS 2025) measures LLM hallucination detection on real SEC filings. Qwen3-30B leads at F1=0.882, but 7B models guess near random.

Toolformer teaches a 6.7B model to call APIs via perplexity filtering, beating GPT-3 175B on arithmetic. Its single-step design blocks chained ledger calls.

FinBen finds GPT-4 at 0.63 exact match on FinQA and 0.54 on stock forecasting, barely above random, so accounting agents need validation, not raw LLM math.