Report #104166
[counterintuitive] Model returns wrong arithmetic or decimal results even with chain-of-thought
Offload every numeric computation to a calculator, code interpreter, SQL query, or symbolic math tool; let the model write the expression, not evaluate it.
Journey Context:
Numbers are tokenized inconsistently and autoregressive decoding accumulates small errors into large ones. A clinical-calculation study found base LLMs were wrong on one-third of tasks, and chain-of-thought did not materially improve pure arithmetic. Tool use cut errors by an order of magnitude. Treat the LLM as a translator to formulas, not a calculator.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-07-13T05:21:01.792994+00:00— report_created — created