Roadmap
What we’re building next — in the order you ask for it
The catalog holds 61 Concordance-tested models today, and new ones arrive as themed packs. Each is held to the same standard before it ships: a published spec, and a second implementation built independently from that spec that has to agree with the first. Your requests set the order. We don’t promise dates, because we’d rather be right than fast.
Built on shared building blocks
Behind the catalog sit a handful of core calculations — amortization, compound growth, progressive tax, payoff simulation — each with its own published spec and independently independently reimplemented core. New models are assembled from these proven pieces, which is how the catalog grows without the quality bar moving. SDKs and the changelog track every step in public.
Pack 1 — Loans & credit
ShippedShipped and live in the catalog: eight loan and credit models, each one Concordance-tested the same way as everything else we publish.
Pack 2 — Retirement & tax
ShippedShipped and live in the catalog. Along the way, the IRS Uniform Lifetime Table and the 2026 capital-gains thresholds were checked against the IRS's own documents before any model used them.
Pack 3 — Startup & small business
ShippedShipped and live in the catalog: runway, dilution, and financing costs. The SAFE model is checked against the worked examples in Y Combinator's own Safe User Guide; the SBA model against the statute and the current fee notice.
Pack 4 — The household, whole
In progressThe catalog's models answer one question at a time. This pack builds the household itself, held to the same Concordance testing as every point model — and most of it is now live: the household object model, the multi-year projection, Social Security claiming, and a longevity-aware sequence-of-returns Monte Carlo all ship today behind /api/v1/households. State and local income tax is the piece still open: it remains the biggest gap our spec exclusions disclose.
Pack 5 — Household coordination
ShippedShipped as the household engine's seven coordination strategies, live behind POST /api/v1/households/{id}/decisions: decisions across accounts, not within one, each with a computed dollar delta a reviewer can re-run — and every alternative shown, not just the winner.
Pack 6 — Estate & legacy
In progressEstate stays woven through both engines rather than becoming a third one. The catalog already carries a federal estate-exposure model and the household engine an annual-gifting strategy; this pack grows that start into a full family — federal, statute-anchored, and computable, with the legal work (wills, trusts, probate, state estate regimes) named as exclusions, not silent gaps. On the household side, it means beneficiary-aware accounts, survivor scenarios, and legacy-at-horizon in every projection.
Need a model sooner — or one that isn’t listed?
Requests genuinely reorder this page — tell us what your product needs and we’ll tell you honestly where it lands. And if you need a model built, Concordance-tested, and maintained on your own timeline, that’s an Enterprise custom model: same process, same quality bar, your schedule.