Credits and billing math
This page explains exactly how credits are calculated so usage and billing remain predictable before you run a job.
Core formula
Credits are charged per file, per step:
file-step credits = base cost × size multiplier
total job credits = sum of all file-step credits across all files and steps
Credit values are whole numbers by design. Each plan includes a monthly credit allowance that resets on renewal. Top-up credit packs are available for additional capacity — they never expire and are spent after your monthly allowance.
Tool base-cost groups (per file, per step)
| Group | Credits |
|---|---|
| Group 1 | 1 credits |
| Group 2 | 5 credits |
| Group 3 | 15 credits |
Size multiplier table (per file)
| File size range | Multiplier | Rule used |
|---|---|---|
| 0 to 10 MB | 1× | size ≤ 10 MB |
| >10 to 25 MB | 4× | size ≤ 25 MB |
| >25 to 50 MB | 7× | size ≤ 50 MB |
| >50 to 100 MB | 10× | size ≤ 100 MB |
| >100 MB | 15× | size > 100 MB |
Example calculations
Small files with lower base cost
12 CSV files at 8 MB each, one tool with base cost 1 credit
Math: 12 × 1 × 1
Result: 12 credits
Larger files with standard base cost
4 PDF files at 42 MB each, one tool with base cost 5 credits
Math: 4 × 5 × 7
Result: 140 credits
Workflow with multiple steps
10 files at 12 MB each, three steps with base costs 1 + 5 + 1
Math: 10 × ((1 + 5 + 1) × 4)
Result: 280 credits