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IntroductionCustom container images Defining ImagesUsing existing container imagesFast pull from registryGPUs and other resources GPU accelerationUsing CUDA on ModalReserving CPU and memoryScaling out Scaling outInput concurrencyBatch processingJob queuesDynamic batching (beta)Multi-node clusters (beta)Deployment Apps, Functions, and entrypointsManaging deploymentsInvoking deployed functionsContinuous deploymentRunning untrusted code in FunctionsModal Sandboxes SandboxesRunning commandsNetworking and securityFile accessSnapshotsModal NotebooksSecrets and environment variables SecretsEnvironment variablesScheduling and cron jobsWeb endpoints Web endpointsStreaming endpointsWeb endpoint URLsRequest timeoutsProxy Auth TokensNetworking TunnelsProxies (beta)Cluster networkingData sharing and storage Passing local dataVolumesStoring model weightsCloud bucket mountsDictsQueuesDataset ingestionPerformance Cold start performanceMemory SnapshotGeographic latencyReliability and robustness Failures and retriesPreemptionTimeoutsGPU healthTroubleshootingSecurity and privacyIntegrations Using OIDC to authenticate with external servicesConnecting Modal to your Datadog accountConnecting Modal to your OpenTelemetry providerOkta SSOSlack notifications (beta)Workspace & account settings WorkspacesEnvironmentsModal user account setupService usersBillingOther topics JavaScript/Go SDKsModal 1.0 migration guideFile and project structureDeveloping and debuggingDeveloping Modal code with LLMsJupyter notebooksAsynchronous API usageGlobal variablesRegion selectionContainer lifecycle hooksParametrized functionsS3 Gateway endpointsGPU Metrics

Billing

Modal is serverless, which means you only pay for the compute you use or reserve. Reservations are not required, and there are no minimum usage-time increments. Up-to-date unit pricing for all of our products is available on our Pricing page.

Billing frequency 

All workspaces are billed monthly. At the end of each billing cycle, you are auto-charged for the Modal usage incurred during that cycle (less any credits), as well as any subscription fees (non-Starter plans only) for the following billing cycle.

Setting a workspace budget 

To set limits on how how much Modal usage can be incurred within the monthly billing period, go to the “Workspace budget” section of Usage and Billing. The max you can set this limit to is based on the history of prior successful charges to your payment method. Within a billing period, you may be charged for incremental usage when you pass certain thresholds. If those charges are successful, the max cap goes up.

Updating billing information 

To update your billing information, click on “Manage payment information” in the Usage and Billing section of Settings. This will take you to a Stripe-hosted page where you can update your payment method and/or billing email.

Viewing invoice history 

To view your invoice history and/or download receipts, click on “Manage payment information” in the Usage and Billing section of Settings. You should see an “Invoice History” section at the bottom of the Stripe-hosted page.

Custom invoicing 

Invoiced billing, international bank transfer payment methods, and other custom requirements are available to customers on an Enterprise plan who have a usage commitment with us. Please contact sales@modal.com.

Questions on billing? Reach out to billing@modal.com.