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