Both help you see what AI costs per user. The difference is what they compare it with, what they cost, and where your data lives. Checked on 2026-11-08 from LiteLLM's public page; we make FiscaLLM, so tell us if anything about LiteLLM is out of date.
| FiscaLLM | LiteLLM | |
|---|---|---|
| What it is | AI cost per user joined to real revenue: margin per user, plan and free trial | Open-source LLM gateway (proxy) that calls 100+ providers through one API and logs spend per key, user, team and end customer |
| Price | Free. Hosted with fair use (100,000 events per app per month), or self-hosted with no limit | Free self-hosted; Enterprise license (SSO, audit logs, spend reports) through sales |
| Hosting | Hosted or self-hosted | Self-hosted proxy |
| Open source | Yes, MIT (server, dashboard and SDKs) | Yes, MIT core; Enterprise features need a license |
| Revenue used for margin | Real revenue from RevenueCat (one-click connect and import), Stripe (webhook and 12-month import), CSV upload, or a revenue API | Tracks spend per end customer, but does not import subscription revenue to compute margin |
| Stripe | Per end user: payments, trials, cancellations, refunds and lost disputes from a webhook, 12 months of history, Stripe's exact fee and any currency with a read-only key | No |
Pick LiteLLM if you want one gateway for many providers with budgets enforced at the proxy. FiscaLLM needs no proxy and puts each user's cost next to what they paid.
Open the demo dashboard (sample data, no sign-up), read the docs, or start free. All comparisons: AI cost per user tools compared.
Yes. FiscaLLM is free and open source (MIT): use the hosted service at fiscallm.com or run your own copy. LiteLLM: Free self-hosted; Enterprise license (SSO, audit logs, spend reports) through sales.
Yes. FiscaLLM only needs one tracking call after each AI request and a revenue source, so it runs next to other tools.