Tools
AI gateway fee calculator
Enter your monthly LLM spend and see each gateway's fee structure priced in dollars per year, sorted cheapest first. Everything runs in your browser.
Enter your monthly LLM spend and see what each gateway's fee structure costs per year: OpenRouter's 5.5% on credit top-ups, Requesty's 5% token markup, Portkey's flat $49/month, and self-hosted LiteLLM at $0 plus ops time. Percentage and flat fees cross over just under $900/month.
Annual fee cost, by monthly spend
| Platform | Fee structure | Fees per year |
|---|---|---|
| LiteLLM | $0, self-hosted | $0 |
| Portkey | $49/mo flat | $588 |
| Requesty | 5% token markup | $3,000 |
| OpenRouter | 5.5% on credit top-ups | $3,300 |
OpenRouter modeled at 5.5% on credit top-ups; Requesty at its 5% token markup; Portkey at the $49/mo Production tier with tokens billed direct by your providers; LiteLLM at $0 plus whatever your ops time is worth. Fees from public pricing pages, verified 2026-07-28.
| Monthly spend | OpenRouter, 5.5% | Requesty, 5% | Portkey, flat | LiteLLM |
|---|---|---|---|---|
| $100 / mo | $66 / yr | $60 / yr | $588 / yr | $0 |
| $1,000 / mo | $660 / yr | $600 / yr | $588 / yr | $0 |
| $10,000 / mo | $6,600 / yr | $6,000 / yr | $588 / yr | $0 |
| $40,000 / mo | $26,400 / yr | $24,000 / yr | $588 / yr | $0 |
The structural read: below ~$900/month the percentage fee is cheaper and simpler; above it, you are paying a growing tax for a fixed service. And the fee is the small lever either way: routing work to the right models moves the bill more than any fee shaving, which is what the model card quantifies per task.