# Lago: what AI models say (September 2026)

Source: Memetik Index, https://www.memetik.ai/vendors/lago
Website: https://getlago.com

Lago was named in 29 of 50 AI answers across 1 category. Best position: Subscription billing, 58% answer share, ranked #4, named first in 0%.

## What Lago is

Lago is an open-source billing platform for engineering, product, finance and operations teams managing complex billing. It links product usage and commercial terms to customer invoices, supporting usage-based, subscription, prepaid and hybrid pricing.

Teams manage billing and invoicing through an API and a visual interface. Applications connect through a REST API, official SDKs and signed webhooks. Lago calculates charges, generates invoices, applies tax and connects to payment processors to collect payment. It can be self-hosted or used as a managed cloud service.

Pricing: The open-source version is free to self-host under an AGPLv3 license; Lago Premium is not publicly priced and pricing is shared when a team books a demo.
(From Lago's own website, read 2026-09-02.)

## By category

| Category | Rank | Answer share | Named first | Models |
|---|---|---|---|---|
| Subscription billing (https://www.memetik.ai/index/startup-billing) | #4 of 15 | 58% | 0% | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |

## What the models said

> "Choose Lago only if self-hosting, customization, or avoiding proprietary billing infrastructure is a genuine requirement."
> — GPT-5.6 Sol, Subscription billing

> "Choose Lago if self-hosting, source visibility, or payment-provider flexibility is strategically important."
> — ChatGPT, Subscription billing

> "If your pricing is usage-based from day one, lean toward Orb, Lago, or Flexprice instead."
> — Claude, Subscription billing