> ## Documentation Index
> Fetch the complete documentation index at: https://narev.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# AI pricing models

> Compare seat, subscription, credit, and usage-based pricing models for AI products and learn how to map inference costs to customer charges with Narev.

## Overview

AI features carry real marginal costs per action. Inference, retrieval, and workflows scale linearly with usage. Standard SaaS seat licenses fail here. Long-term sustainability requires metering usage and enforcing guardrails.

## Pricing models for AI

Narev Cloud meters backend usage and syncs with your billing provider.

| Model             | Implementation                      | Technical Requirement           | Narev Cloud Tier                                                                                                                |
| :---------------- | :---------------------------------- | :------------------------------ | :------------------------------------------------------------------------------------------------------------------------------ |
| **Subscription**  | Flat monthly fee.                   | Standard license check.         | —                                                                                                                               |
| **Usage-Based**   | Charge per token or compute second. | Real-time token tracking.       | <Badge color="green" icon="circle-check" size="sm">Free</Badge> <Badge color="purple" icon="circle-check" size="sm">Pro</Badge> |
| **Outcome-Based** | Charge per resolved task.           | Event-driven state tracking.    | —                                                                                                                               |
| **Hybrid**        | Base fee + metered usage.           | Sync recurring tiers with logs. | <Badge color="blue" icon="circle-check" size="sm">Enterprise</Badge>                                                            |