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Unit Cost Pin (T-001)

A compact Flask app that estimates per-task and monthly costs for capped-retry LLM workflows.

Getting started

pip install -r requirements.txt  # or `pip install flask`
FLASK_APP=t001_unit_cost_pin.app flask run

Open http://localhost:5000 and adjust the form inputs. The defaults show the golden-path example from the spec.

Golden-path example

Inputs:

pr_in_1k = 0.003
pr_out_1k = 0.015
tok_in = 1500
tok_out = 1000
p = 0.8
r = 1
overhead = 1.15
volume = 2000
vps = 2.00

Outputs rendered on the page:

Cost / Attempt — $0.01950
Expected Attempts / Task — 1.20
Success probability within cap — 96.00%
Cost / Task — $0.02691
Monthly Cost — $53.82
Breakeven $ / Success — $0.02803
ROI / Task — $1.893