We compared 10 billing platforms for AI SaaS products — here's the honest breakdown
We compared 10 billing platforms for AI SaaS products. Here's the honest breakdown
Full transparency upfront: we build Saaslogic, a billing platform for AI SaaS companies. So yes, we have a horse in this race. But we've spent a lot of time in the weeds with every major billing tool, and I'll tell you exactly where each one wins — including where we fall short.
If you're building an AI product that does usage-based billing (tokens, API calls, credits), this one's for you. Standard billing tools were designed for flat subscriptions. They break as soon as you need to track 10M token events per month or mix base fees with overages.
THE QUICK VERDICT:
Stripe + Metronome — Best if you already use Stripe and want usage tracking bolted on. Solid, but expect some glue work.
Orb — Excellent for API companies. Weak on customer-facing cost controls — your users can't easily track their own spend.
Lago — Open-source. Self-host it if you hate vendor lock-in and have a dev who can run it. Clean API, genuinely yours.
Chargebee — Good for mid-market. Free up to $50K in billing, then 0.75% of revenue. Easy to integrate, less native AI billing.
Flexprice — Built for AI startups. Credit systems, outcome-based billing, no code overrides. Free tier up to 100K events/mo.
Zuora — Enterprise grade. Revenue recognition, global tax, audit trails. Overkill for early-stage — takes months to set up.
Zenskar — If you're doing complex enterprise contracts (custom pricing per deal), this handles it without custom engineering each time.
Maxio — Strong analytics and revenue reporting. Works best for simpler, predictable monthly usage — not granular per-event tracking.
Recurly — Best if churn is your primary problem. Smart dunning, retry logic. Not built for complex AI usage billing.
Saaslogic — Our take: strong for hybrid pricing (base + overage) and ASC 606 revenue recognition. Still growing on docs and integratio
HOW TO PICK (for real):
Bootstrapped + API product → Start with Lago (free, yours forever) or Flexprice's free tier.
Funded startup, moving fast → Chargebee or Saaslogic. Less setup, handles growth.
Enterprise deals with custom pricing → Zenskar. Built for exactly this.
Churn is killing you → Recurly. Dunning and retry logic is genuinely good.
Series B+, financial compliance matters → Zuora. Worth the setup pain at that scale.
The thing that surprised me most doing this: most "usage-based billing" tools still assume fairly predictable usage. If your costs spike 10x because a user ran a huge batch job, a lot of platforms don't handle that gracefully on the invoice side.
Curious what billing stack others here are running—especially if you've switched tools mid-growth. What broke, and what did you move to?
Full breakdown with pricing details → saaslogic.com/blog
#saas #billing #indiebusiness #growth #ai
