---
license: mit
language:
- en
pretty_name: llm-arithmetic
size_categories:
- n<1K
task_categories:
- question-answering
tags:
- llm-evaluation
- arithmetic
- finance
- claude
configs:
- config_name: rows
  data_files:
  - split: train
    path: results.json
  field: rows
---

# llm-arithmetic

Author: Dmitriy Semenkevich (dimhold)

This dataset measures whether 4 Claude models can do 10 pieces of SaaS arithmetic (MRR, ending cash, LTV, runway) with every tool taken away.

Headline, from the repository: exact answers were 10 / 10 for claude-opus-5, 9 / 10 for claude-sonnet-5, 3 / 10 for claude-haiku-4-5 and 9 / 10 for claude-fable-5; all 4 models were within 1% on 10 / 10 (RESULTS.md).

This is a mirror. The canonical home is the Zenodo record and the GitHub repository; criteria, limitations and full tables live there.

- Paper: https://dimhold.by/papers/llm-arithmetic/
- Code and full write up: https://github.com/dimhold/llm-arithmetic
- DOI: https://doi.org/10.5281/zenodo.22128841

## Files

| path | what it is |
|---|---|
| `results.json` | every call: tasks with expected values computed in code, and one row per model and task under `rows` |
| `transcript.md` | every question and every full reply |
| `RESULTS.md` | the result tables |

## How it was produced

Run on 2026-08-16 through the Claude Code CLI with built in tools and MCP servers disabled. Tasks are generated from seed 20260812, ground truth is computed in `run.ts` and never by a model, and the answering model is verified against `modelUsage`. The scripts that turn these files into every number are in the GitHub repository. One local path in `results.json` is written as `<private-project>`. Nothing else was edited.

## Licence

MIT, the licence of the repository, covering code and data.

## Citation

```bibtex
@misc{semenkevich2026llmarithmetic,
  author = {Semenkevich, Dmitriy},
  title  = {llm-arithmetic: can Anthropic's models do SaaS arithmetic without a calculator?},
  year   = {2026},
  doi    = {10.5281/zenodo.22128841},
  url    = {https://doi.org/10.5281/zenodo.22128841}
}
```