Open Source Tax Engine outperforming fable 5 and gpt sol

Article automatically generated from technical news.

We made an open source tax engine which scored 96% on TaxCalcBench [highest ever recorded score till date] surpassing fable 5 and sol with just sonnet 5. The only 2 cases where it missed, it found inconsistencies in the test cases in the benchmark itself which the maintainers confirmed! Essentially we wanted to make a deterministic engine AI models can use for research and tax prep to remove a lot of guesswork and calculation mistakes that often happen, with this you don't need to use a S