87ns
Per-record sensitivity propagation
Measured against a 4-arg typed DAG, warm cache, single-record perturbation. Reproducer: bench_compile_50_warm.py at commit 46a6328.
bench · commit 46a6328Proof
Every number on this site
points to an artifact.
When the Heartbeat says 87 ns per sensitivity, this is the file the number comes from.
This is what computation provenance means in practice: deterministic compilation plus a re-derivable record of how every number was reached. It is the architectural property at the core of Financial Reasoning Infrastructure.
Artifacts
4,000drivers
Largest compiled DAG in the benchmark suite
Cold + warm compile sweep across 50 / 200 / 500 / 1000 / 2000 / 4000 drivers, each step validated as a clean compile — every driver valued, zero errors. The 4,000-driver case: 7.7ms cold / 1.42ms warm. Synthetic model — not a production graph. The production NDO graph is 3,657 drivers. Reproducer: bench_scale_warm.py at commit 729aeb1, re-run clean 2026-06-05.
bench · bench_scale_warm.py · commit 729aeb1 · re-run 2026-06-05bit-identical
Same IR always produces same outputs
The compile pipeline is a pure function over the IR: same input, same output, every machine, every run. Verified across macOS arm64 and Linux amd64 in CI. No floating-point drift between cold and warm caches.
determinism · CI matrixbothday one
MCP + REST surfaces
Durable per-call REST at api.flatlandfi.com/api/v2 · local MCP bridge (flatland-client mcp) over the same engine, two protocols. Your model is a file you own.
API reference →single-digit ms warm
Compile latency
50-driver compile, warm cache, runs in single-digit milliseconds on commodity hardware. Cold compile takes longer while the parser and type system warm up. Reproducer: bench_compile_50_warm.py at commit 46a6328.
bench · bench_compile_50_warm.py · commit 46a6328✓
Tenant isolation
Per-key authentication boundary. Each API key is a logical tenant.
security posture →Flatland · index of everything
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© 2026 Flatland · Financial Reasoning Infrastructure · live pulse · awaiting first compile