The best usage-based billing platform for your company depends on three things: whether your pricing model is hybrid (subscription plus usage plus credits), how many events you process per month, and what the real per-transaction cost looks like at your 3-year ARR.

I firmly believe the question isn't which usage-based billing platform is best, because there's enough difference between them to not have an absolute winner 100% of the time - the question is which one fits your pricing model, your event volume, and where you'll be in two years. You don't want to migrate again in a year, so choose wisely.

This comparison covers six platforms: Solvimon, Orb, Lago, Chargebee, Metronome, and Stripe Billing, with what each does well, where each breaks, and who each is for.

What is usage-based billing software?

Usage-based billing software (also called consumption-based pricing software or metered billing infrastructure) sits between your event sources and your payment processor.

A good platform will not just let you ingest usage events (API calls, tokens generated, compute minutes, agent actions) and aggregate it, it'll also work according to your pricing rules, and generate invoices based on actual consumption rather than a fixed fee.

The platform handles four jobs:

1. event ingestion and deduplication

2. pricing logic (tiered, volume, matrix, committed-spend)

3. billing automation - invoice generation

4. revenue operations - revenue reporting and revrec.

   
   

The platform you choose determines how much of this you own versus hand off to a vendor, and how much the infrastructure costs as your revenue grows.

In 2026, most SaaS and AI companies run some form of hybrid pricing: a base subscription with usage components layered on top. Pure pay-as-you-go is less common than it was in 2024.

The platforms that handle hybrid pricing cleanly are a different set than those built purely for metered billing.

How to choose a usage-based billing platform

Four questions will help you evaluate:

Is your pricing hybrid? Seats plus credits plus overages plus enterprise commits is what most AI companies and scaling SaaS run today. Chargebee and Stripe Billing handle simple combinations. Orb, Metronome, and Solvimon handle full hybrid models with commit tracking, credit pools, and multi-dimensional pricing.

What is your event volume trajectory? Stripe Billing's Events API rate-limits at 100 requests per second, a ceiling reached at approximately 10 million metered events per month. If you're building an AI product where every token generation or agent action is a billable event, plan around that limit before you hit it.

Where does your usage data need to live? Cloud-hosted platforms (Solvimon, Orb, Chargebee, Metronome, Stripe) store your usage data on their infrastructure. For healthtech or fintech with data residency requirements, that is a hard constraint. Lago (self-hosted) is the main alternative.

What is the TCO at your 3-year ARR? Percentage-of-revenue pricing compounds. A platform charging 0.5% of revenue costs $50,000 per year at $10M ARR and $150,000 per year at $30M ARR, independent of what it costs the vendor to process your events. Run that math before you sign.

The usage-based platforms worth knowing

Solvimon

Solvimon is billing infrastructure for the AI and hybrid economy, built by the team that ran billing at €1T+ annual volume at Adyen. The product handles every pricing model you'll encounter at scale: subscription, usage, credits and wallets, hybrid plans, and enterprise commits, through a single unified ledger. Integrations include HubSpot, Salesforce, Xero, NetSuite, and Snowflake.

The combination that matters: an enterprise-grade metering layer without Stripe's 100 req/s ceiling, full hybrid pricing support across Solvimon's Catalog, Metering, Wallets, and Subscriptions primitives, and a revenue recognition layer that connects billing data directly to your finance stack.

For AI companies billing on token consumption or agent actions, Solvimon handles the event volumes that break Stripe Billing. For companies that have outgrown their first billing system and are rebuilding for hybrid pricing at scale, it is the architecture that doesn't require custom orchestration code on top.

Pricing: 0.4% of revenue for AI companies, with the first $3M free.

Solvimon also bundles payments and billing together: payment processing at 2.5% + 25¢ domestic plus the 0.4% billing fee gives a combined rate of 2.9%, approximately 70 basis points cheaper than Stripe's equivalent 3.6% (2.9% processing + 0.7% billing).

On $10M in payment volume, that gap is $70,000 per year. If you already have a PSP relationship you want to keep, Solvimon works alongside it; the billing fee still applies, the processing savings don't.

Orb

Orb is a managed cloud billing platform with strong support for API companies and developer tools. The pricing engine handles matrix pricing (billing on multiple dimensions simultaneously), committed-spend, and real-time usage metering. The developer documentation is among the strongest in the market.

The tradeoffs: your usage data lives in Orb's infrastructure, and the percentage-of-revenue pricing model at lower tiers becomes expensive as revenue scales. Orb is a strong fit for engineering teams that want sophisticated managed billing without infrastructure ownership and where data residency is not a constraint. Less ideal for companies at the revenue point where 0.5% of revenue is a material budget line.

Lago

Lago is MIT-licensed open source billing infrastructure. Self-hosted, free, customizable. The right choice for teams that want full inspection rights over their billing code and are willing to own the deployment and operations. The managed cloud version starts around $600–800 per month.

Complex enterprise contract structures and committed-spend agreements are less mature in Lago than in Orb or Solvimon. For early and growth-stage companies prioritizing open source, it is the strongest option in the market. For companies that need enterprise SLAs on their billing layer, the community-support model on the free tier is a real constraint.

Chargebee

Chargebee is the most established platform for subscription billing with usage components. Deep pre-built integrations with Salesforce, NetSuite, and QuickBooks. Strong support for non-technical billing operators, meaning finance and ops can configure plans without engineering involvement. Built-in revenue recognition tools for ASC 606 and IFRS 15 compliance.

The fit is strongest for subscription-first models where usage is an add-on rather than the core billing motion. For pure usage-based or AI products, the subscription-centric data model creates friction. (If your primary pain is the operations overhead of managing 50 subscription plans across a non-technical team, Chargebee's UI is good at that job.)

Metronome

Metronome is purpose-built for enterprise usage-based billing at large scale: committed-spend agreements, draw-down balances, ramp schedules, and custom contract exceptions. Infrastructure companies and cloud platforms with large enterprise customer bases are the core use case. Pricing is custom and requires a sales engagement.

Overkill for companies below $10M ARR and exactly right for companies managing dozens of custom enterprise contracts where the primary billing challenge is contractual complexity rather than infrastructure throughput.

Stripe Billing

The most common starting point and the most common migration source. Stripe Billing adds metered billing to an existing Stripe relationship, which reduces vendor onboarding friction. The 100 req/s rate limit on the Events API, percentage-of-revenue pricing (0.5–0.8%), and limited hybrid pricing support are the three failure modes that surface as you scale.

Appropriate for: pre-product-market-fit, simple pricing models, under 10 million events per month. Plan the migration to a purpose-built platform before you hit the rate limit mid-quarter, not after.

Which billing systems support hybrid pricing models?

Hybrid pricing (a combination of subscription fees, usage-based components, and credit pools) is the dominant model for AI companies and modern SaaS. The platforms that handle it natively, without requiring custom orchestration code:

Solvimon, Orb, and Metronome have the strongest hybrid pricing support. Solvimon handles it through a unified ledger combining Subscriptions, Metering, and Wallets in a single data model: one source of truth for seats, usage events, prepaid credits, and enterprise commits. Orb handles matrix pricing and committed-spend with a well-designed API. Metronome is strongest for enterprise contractual complexity at significant volume.

Chargebee handles hybrid pricing for subscription-plus-usage but requires workarounds for credit pools and multi-dimensional committed-spend. Lago handles the common cases but complex enterprise structures are still developing. Stripe Billing handles basic subscription-plus-usage metering; anything beyond that typically requires you to bring in Metronome and manage multiple systems.

If hybrid pricing is your current model, or where you are heading within 12 months, evaluate specifically against your combination: seats plus usage, usage plus credits, or commits plus overages.

Total cost of ownership at scale

The table below shows what percentage-of-revenue pricing costs at different ARR levels, compared to Solvimon's 0.4% after the first $3M free.

Assumptions: Orb / Chargebee at 0.5% of revenue; Stripe Billing at 0.7%; Solvimon at 0.4% after the first $3M free (AI company pricing).

The first $3M is free, so for most early and growth-stage AI companies the billing fee is $0 until revenue is material. Above $3M, the 0.4% rate is lower than Orb and Chargebee's typical 0.5%, which means Solvimon is cheaper at every ARR level, not just at scale.

If you route payments through Solvimon alongside billing, the combined rate is approximately 70 basis points cheaper than Stripe's equivalent (2.9% + 0.4% billing vs. Stripe's 3.6% combined). On $10M in payment volume, that gap is $70,000 per year.

Frequently Asked Questions

What is usage-based billing software?

Usage-based billing software tracks customer consumption of a product (API calls, data processed, compute minutes, tokens generated) and generates invoices based on actual usage rather than a fixed subscription fee. It sits between your event sources and your payment processor, handling metering, pricing logic, and invoice generation.

What is the difference between consumption-based pricing and usage-based pricing?

The terms are used interchangeably. Consumption-based pricing, usage-based pricing, pay-as-you-go, and metered billing all describe the same model: customers pay based on what they actually consume. The billing infrastructure requirements are identical.

Which billing systems support hybrid pricing models?

Solvimon, Orb, and Metronome have the strongest native hybrid pricing support. Hybrid pricing (subscription base plus usage plus credit pools plus enterprise commits) requires a billing system with a unified data model that tracks all components together. Stripe Billing and Chargebee handle basic combinations but require custom code for complex hybrid structures.

What is usage-based billing automation?

Usage-based billing automation means the billing system ingests usage events, applies pricing rules, and generates invoices without manual intervention. At scale, this includes automated dunning (failed payment retry), mid-cycle upgrades, credit balance management, and revenue recognition. Purpose-built platforms handle all of this automatically. Stripe Billing typically requires custom orchestration code for the same result.

Which usage-based billing platforms work for AI companies?

For AI companies billing on token consumption, agent actions, or model API calls, the key requirements are high event throughput, hybrid pricing support (typically a base plan plus usage credits), and the ability to connect billing data to finance systems. Solvimon, Orb, and Metronome have the strongest fit for AI billing. Stripe Billing's 100 req/s rate limit becomes a constraint at any meaningful AI product scale.

What is the best usage tracking software for consumption pricing?

Usage tracking for consumption pricing requires an event ingestion layer (capturing the billable event at the moment it happens), an aggregation layer (summing events per customer per billing period), and a pricing engine (applying the rate card to the aggregated totals). Solvimon's Metering primitive, Orb's real-time metering, and Lago's meter configuration all handle this. Stripe's Events API handles it at low volume, with the 100 req/s ceiling as the limit unless you add Metronome as a second vendor.

How do I migrate from Stripe Billing to a purpose-built usage-based billing platform?

Migration typically takes 4–12 weeks. The sequence: export historical billing data, run both systems in parallel for one billing cycle to validate invoice accuracy, then cut over. Budget 4–8 weeks for the parallel-run period. Skip it and you discover discrepancies in live customer invoices.

Solvimon is billing infrastructure for the AI and hybrid economy. We handle metering, subscription billing, credit wallets, invoicing, and revenue recognition through a single unified ledger, built by the team that ran billing at €1T+ volume at Adyen. Talk to us →