Autumn and Commet start from the same observation: an AI company should not build credit ledgers, usage limits, feature gating, and subscription synchronization inside its own application.
The difference is where each platform stops.
Autumn is a control layer over Stripe. It simplifies plans, balances, usage, and access, then creates Stripe subscriptions and sends charges into Stripe’s billing and payment lifecycle.
Commet is the monetization engine and the payment control plane. The same integration measures usage, controls access, runs the subscription, routes the charge across PSPs, recovers failures, and can make Commet the Merchant of Record.
If Stripe is your only payment strategy forever, Autumn can remove boilerplate. If your AI company expects to grow across markets, providers, and commercial models, Commet avoids rebuilding the stack after the first stage.
TL;DR
| Autumn | Commet | |
|---|---|---|
| Core role | Open-source pricing and entitlement layer over Stripe | Monetization engine across product usage and payment rails |
| Usage and access | Real-time check and track with feature balances | Events, features, plans, access, credits, balances, and charges in one model |
| Subscriptions | Autumn state backed by Stripe subscriptions | Provider-independent subscriptions owned by Commet |
| Payments | Stripe creates charges, invoices, checkout, refunds, and disputes | Route through Stripe, other PSPs, or Commet as provider |
| Payment recovery | Follows the Stripe payment lifecycle | Provider fallback, error mapping, retries, dunning, and self-serve recovery |
| Merchant of Record | Not offered | Native optional Commet MoR alongside owned PSPs |
| Best fit | Teams committed to Stripe or wanting to self-host a billing layer | AI companies that want one engine from usage to global payment |
The same first problem, a different boundary
Autumn sits between your product and Stripe
Autumn gives developers a clear feature-plan-balance model:
- Define boolean, consumable, or non-consumable features
- Add those features to plans
- Attach a plan to a customer
- Check the customer’s balance or access
- Track usage as it occurs
- Let Autumn create the corresponding Stripe objects and charges
This is a meaningful improvement over wiring Stripe products, prices, webhooks, balances, and feature flags by hand.
The architectural boundary remains Stripe. Autumn creates Stripe subscriptions under the hood. Stripe produces invoices, hosts checkout, processes payments, manages refunds and disputes, and owns the payment methods.
Commet owns the complete monetization path
Commet follows the same product-friendly beginning and continues through collection:
- Track a billable customer action
- Organize it as a product feature
- Package it into a usage, credit, balance, seat, tiered, or hybrid plan
- Check access and remaining consumption
- Calculate the subscription charge
- Select the right PSP
- Retry through a fallback provider when necessary
- Recover the payment and keep subscription state synchronized
Stripe can still be one of those providers. It is no longer the architecture around which the product must be designed.
That distinction matters earlier than most startups expect. Payment acceptance, local rails, provider pricing, outages, taxes, and global expansion eventually force payment decisions. Commet lets the company make those decisions without migrating usage, plans, balances, and subscriptions again.
Usage, credits, and access
Autumn is built for the same modern AI pricing patterns Commet supports. It can model included usage, pay-as-you-go overages, prepaid units, monetary credits, top-ups, seats, tiers, rollovers, trials, and feature gates. Its check and track APIs turn customer balances into product access.
Commet delivers those models as part of a broader operational loop:
- Capture tokens, API calls, agent runs, storage, actions, or outcomes
- Use stable feature codes across tracking, access, plans, and reporting
- Process events idempotently so retries never double-count consumption
- Group several actions into a shared credit or prepaid balance
- Show current usage and remaining units in the product or customer portal
- Allow overages or block usage according to the plan
- Let non-technical teams change features, limits, and prices without code
- Turn the same consumption into a charge routed to the selected provider
Autumn and Commet can both answer, “Can this customer use this feature?”
Commet also answers, “Which provider should collect the resulting charge, what happens if it fails, and who is responsible for the tax and payout operation?”
Explore event tracking, features and entitlements, and usage monitoring.
One Stripe account or a payment strategy
Autumn explicitly builds on Stripe rather than replacing Stripe Billing. Plans and features live in Autumn, but subscriptions and payments live in Stripe.
That creates several practical constraints:
- Every paid feature becomes Stripe product and price infrastructure
- Direct changes in Stripe do not automatically become Autumn state
- Refunds, disputes, payment logs, and some advanced subscription changes happen in Stripe
- Switching the connected Stripe account invalidates the relationship with existing customer subscriptions
- Payment performance depends on the provider and methods available through Stripe
- Adding a different PSP requires another payment architecture
Commet treats payment providers as interchangeable rails behind one subscription:
- Keep Stripe as the primary provider
- Add dLocal or another local PSP for a specific market
- Route by country, context, or commercial rule
- Define a fallback when the primary provider fails
- Store and refresh credentials for reuse across supported providers
- Normalize payment outcomes and errors
- Keep every attempt attached to the same customer and subscription
The benefit is not merely adding more integrations. It is preventing the payment provider from becoming the source of truth for your monetization model.
Explore payment providers and orchestration and tokenization.
Recover more than a Stripe retry
Autumn handles payment states and subscription edge cases around Stripe. A failed attach can return a Stripe-hosted payment URL, a failed recurring payment can mark the subscription past due, and Stripe webhooks update Autumn’s state.
Commet owns recovery across the payment stack:
- Map provider-specific decline errors into a consistent customer message
- Retry recoverable failures automatically
- Attempt a fallback PSP when provider routing allows it
- Coordinate dunning communication with subscription state
- Let customers update their payment method through self-serve recovery
- Preserve the same commercial terms across every attempt
When there is only one processor, every retry goes back to the same rail. With Commet, a provider failure does not automatically become lost revenue.
Learn more about dunning and recovery.
Merchant of Record from day one
Autumn keeps subscriptions, customers, and payment details in the company’s Stripe account. The company remains the seller and owns taxes, compliance, refunds, disputes, and settlement.
Commet gives an AI startup another path: launch with Commet as Merchant of Record.
As MoR, Commet handles:
- Local-currency collection
- Tax registration, calculation, filing, and remittance
- Compliance and invoicing requirements
- Refunds, disputes, and chargebacks
- Global payouts
The company can later connect its own PSPs and localize payments as it grows. The feature, plan, usage, and subscription model does not move when the payment strategy changes.
For a startup selling globally, this removes a larger operational burden than abstracting Stripe objects.
Read more about Commet Merchant of Record.
Product teams, business users, and agents
Autumn has a developer-friendly API, dashboard, configuration file, CLI, and open-source codebase. It is a good fit for teams that want billing configuration to live close to code.
Commet keeps the developer experience and opens the same model to every operator:
- Engineering integrates through SDKs or the full API
- Developers use the CLI
- Business teams edit features, plans, limits, offers, and trials in the dashboard
- Teams and their agents operate Commet through MCP
The product model does not change across interfaces. A business user can update the included credits without creating a new Stripe architecture or asking engineering to redeploy the application.
This matters when pricing becomes a continuous product decision instead of a one-time implementation.
Open source or managed infrastructure
Autumn’s core platform is open source. Teams can inspect it, modify it, and self-host it. That is a real advantage when source access or infrastructure ownership is a hard requirement.
It also changes who owns the operation.
A self-hosted billing system puts availability, event durability, concurrency, upgrades, Stripe webhooks, data migrations, and incident response back on the company. The cloud product removes much of that work, but the payment boundary remains Stripe.
Commet is managed infrastructure. Its platform is not open source, while its SDKs and developer libraries are public. Commet owns the operational path from event ingestion through access, billing, provider routing, and recovery.
For most AI startups, owning billing source code is less valuable than removing billing and payment operations from the roadmap.
Feature comparison
| Dimension | Autumn | Commet |
|---|---|---|
| Product model | Features, plans, balances, and Stripe-backed subscriptions | Features, plans, consumption, subscriptions, and provider-independent payments |
| Usage tracking | Real-time check and track | Real-time tracking, access, usage monitoring, and billing |
| Credits and prepaid | Included balances, credits, rollovers, and top-ups | Credit plans, prepaid balances, top-ups, limits, and overages |
| Seats and tiers | Supported | Supported with proration and add-ons |
| Payment provider | Stripe | Stripe, multiple owned PSPs, or Commet |
| Routing and fallback | Not a multi-PSP control plane | Country and context routing with provider fallback |
| Tokenization | Stripe owns payment credentials | Commet stores and reuses credentials across supported providers |
| Merchant of Record | Not offered | Native optional Commet MoR |
| Business operation | Dashboard, API, CLI, and config-as-code | Dashboard, SDKs, API, CLI, MCP, and agents |
| Deployment model | Open-source self-hosting or managed cloud | Fully managed platform with public SDKs |
Pricing
Autumn is open source and can be self-hosted. Its managed service should be evaluated together with Stripe Billing and payment processing fees, plus the engineering cost of operating any self-hosted components.
Commet publishes separate paths for each stage:
- Launch uses Commet as Merchant of Record with no monthly fee and charges 5% + $0.40 per successful transaction
- Growth includes $40,000 per month in tracked revenue for $375, then charges 1%
- Scale includes $85,000 per month in tracked revenue for $750, then charges 0.7%
- Enterprise uses a declining revenue rate or flat fee
The correct comparison is not only the billing-layer price. Include Stripe fees, tax software, payment recovery, future PSP integrations, and the work required to operate billing safely.
Review the current numbers on the Commet pricing page.
The narrower case for Autumn
Autumn can fit when:
- Stripe will remain the only payment provider
- Open-source access or self-hosting is a mandatory requirement
- A developer wants a compact feature and credit layer over an existing Stripe setup
- The company is comfortable operating taxes, disputes, refunds, and global settlement separately
- Multi-PSP routing, fallback, and Merchant of Record are outside the roadmap
That is a narrower commitment than it first appears. An AI company can outgrow a single-provider payment architecture long before it outgrows the feature and credit model built on top of it.
When Commet is the better choice
Choose Commet when:
- You want the same product-led simplicity without making Stripe permanent
- Usage, access, plans, subscriptions, and payments should share one source of truth
- Your company expects to add local or fallback PSPs
- Failed payments need provider-aware recovery
- Business users and agents need to iterate monetization without code
- You want to launch globally with a Merchant of Record
- The billing engine must remain stable as the payment strategy evolves
Commet is designed for the complete lifecycle of an AI company: launch usage billing quickly, collect globally, and add payment sophistication without migrating the product model.
Moving from Autumn to Commet
The migration can keep Stripe active throughout the process.
- Inventory features and plans. Map boolean, consumable, non-consumable, priced, and included Autumn items to Commet features.
- Transfer customer balances. Preserve granted, purchased, rolled-over, and remaining credit or prepaid amounts.
- Recreate subscriptions and commercial terms. Match intervals, trials, tiers, top-ups, add-ons, and proration behavior.
- Send usage to both systems. Compare access decisions and balances before moving production reads.
- Connect the existing Stripe account. Keep Stripe as the first Commet provider so customers do not need to change payment methods immediately.
- Move customers by cohort. Cut over at renewal or an explicit boundary to avoid duplicate subscription changes.
- Add routing or MoR later. Introduce another PSP or Commet MoR without changing the feature and plan model again.
Payment-method portability depends on the provider, vault, region, and customer authorization. Historical Stripe invoices and disputes should remain available after active subscriptions move.
Explore the payment orchestration docs, review Commet pricing, or book a demo to map your Autumn setup.