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AI Native Billing Platform

Lark is building an AI native billing platform to serve the needs of fast growing AI companies. Jack and Vijit previously built a usage-based billing system for a large billing provider. AI Pricing models are evolving fast and existing billing providers haven’t been able to adapt. Large AI companies have had to build their billing systems in-house because they couldn’t model their pricing with existing billing providers. Lark provides a flexible pricing engine that can support complex pricing models for these AI companies. It also eliminates billing operations overhead and improves the end user billing experience. Lark is already working with customers like Midjourney to solve their billing issues and improve end user billing experience on top of existing billing providers. They are currently building a billing platform to make billing integrations trivial for AI companies.
Active Founders
Vijit Dhingra
Vijit Dhingra
Founder
Vijit is the co-founder of Lark. He previously spent five years at a large billing company where he built their usage based billing product and the customer portal. He also build some core payments and disputes infrastructure.
Jack Brown
Jack Brown
Founder
Jack is the co-founder of Lark. Previously, Jack built usage-based billing to support the complex pricing models of the worlds biggest AI companies. Prior to his previous role, Jack led engineering teams at fast-growing startups, where he developed expertise in solving sophisticated billing challenges.
Company Launches
Lark: AI Agents for Billing
See original launch post

TL;DR

Lark helps subscription companies automate customer billing support inquiries, manage chargebacks, and prevent fraud.

https://youtu.be/gmg8HxjaS1Q

Problem

Billing your customers is hard.

Teams spend tens of hours every week attending to billing support inquiries and customers often wait days to receive a response. You also have to worry about fraud and chargebacks.

All of this is distracting for your team and no one likes working on this. Ignoring the issue leads to frustrated customers, risk of being banned from your payment processor, and lost revenue.

Solution

Lark provides AI agents that automate all of this for you.

Our agents integrate with your billing provider, support system (e.g. zendesk), and data sources to gather context about the customer and take actions on your behalf. The agents’ decisions are evaluated against strong guardrails to ensure their actions are safe and follow your policies.

Team

Vijit and Jack both previously built the usage based billing product and customer portal for a large billing provider. Jack has solved billing issues at several startups.

Our Ask

If you’re tired of dealing with billing issues or know someone who is, we’d love to chat! We’re currently working with a few large consumer companies and are actively looking to onboard more customers. We’re also happy to chat about anything in the billing space!

Contact Info

founders@uselark.io

Book time here

YC Photos
Lark
Founded:2025
Batch:Summer 2025
Team Size:2
Status:
Active
Location:San Francisco
Primary Partner:Brad Flora