Per-record sensitivity propagation: 4-arg typed DAG.
bench · commit 46a6328 →Financial Reasoning
Infrastructure.
Largest compiled DAG in the benchmark suite. Cold compile, zero errors.
bench · scale-warm →Institutional Excel-export rubric. Three-pass compile, no drift.
rubric · six-sheet test →Same IR always produces the same outputs. Deterministic, recomputable.
determinism test →Both protocols, day one. Your agent calls the same engine your CFO can curl.
api reference →Then $0.10 per answer. No seat licenses. No proposal.
pricing detail →Not a spreadsheet.
Not a chatbot.
A typed compilation layer.
Spaceland · consumer hardware + subscription · fictitious demo model
The automation layer is done.
The model layer is the last frontier.
Flatland is that layer.
Inputs · typed assumptions
Outputs · compiled in topological order
Assertions · guardrails
Every compile produces this. Typed assumptions, an explicit dependency graph, assertions that catch bad structure, and a re-derivable content hash you can recompute independently. This is Financial Reasoning Infrastructure as a visual. The Excel ships too — but this is the source of truth.
See the institutional Excel proof →The compile layer the category runs on.
Compiled answers across your engagement roster. Typed drivers, recomputable models, audit-trailed exports. Built for the firm that bills as fast as it can defend the work.
Your Series A model, compiled.
Describe your business in natural language. Out comes a typed model with named assumptions, named ranges, and an Excel your investor will read. Thirty minutes, not three weeks.
A financial modeling MCP your agent can call.
Typed IR. DAG. Sensitivity. Scenarios. Excel. One npx command and your agent harness has a deterministic finance backend. No custom-tool glue, no JSON-pretending-to-be-a-model.
The typed substrate platforms embed.
If you're building a finance product on top of LLMs, Flatland is the deterministic layer underneath. We sit below your agent and behind your UI: IR in, audit-grade artifact out. You keep the customer; we hold the math.
Quantitative reasoning,
compiled.


