BLOG · 2026-09-25 · 6 min read
The ledger: splitting "savings" into three verifiable numbers
The most common problem with cost-cutting tools is that nobody can check their savings claims. The LanboX ledger exists to fix that.
Three numbers
Potential savings: what you would save if every replaceable call were replaced. Useful for deciding whether the work is worth doing.
Realized savings: the price gap between the baseline and calls actually served by skill models.
Verified savings: the portion of realized savings where quality also passed. This is the only number that is billed.
Anatomy of an entry
{
"id": "L-20260925-4812",
"skill": "ticket-triage@v7",
"baseline_cost": 0.0026,
"actual_cost": 0.0003,
"quality": { "candidate": 0.962, "baseline": 0.958 },
"verified": true
}Why reproducibility matters
Every entry stores the price-sheet version, the scoring method and references to its samples. Anyone can feed in the same inputs and get the same result, and that is what makes a savings-share model trustworthy.