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STACKIT vs Modal

Last updated October 2026

Looking for a European alternative to Modal? Here's how STACKIT compares, on EU hosting, GDPR and what it does.

Our pick for a European buyer: STACKIT. We weight data residency, GDPR and EU jurisdiction above everything else — that is the constraint this directory exists to solve.

STACKIT
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What it is
German AI hosting with EU data sovereignty and open-source OpenStack
Serverless platform for running AI workloads and apps in the cloud.
Headquarters
🇩🇪 DE
🇺🇸 US · 2021
EU data residency
Yes, for all customers
Available on some plansEU region processing is available on request, but some data types are stored in the US by default.
DSGVO / GDPR
Yes
Yes
Certifications
ISO 27001, ISO 27017, ISO 27018, ISO 20000, ISO 50001, BSI C5 Type 2, ISAE 3000/SOC 2, ISAE 3402
SOC 2 Type II
Price from
No
No
Free plan
No
Yes
Open Source
Yes
No
Ratings
No
No
Integrations
No
AWS, GCP, OCI, PyTorch, Axolotl +6

Where each one wins

STACKIT

Strengths

  • +Intuitive interface for easy cloud service navigation and management
  • +Responsive and knowledgeable customer support
  • +Straightforward onboarding with helpful resources and training
  • +Stable and reliable cloud infrastructure
  • +GDPR-compliant hosting with a focus on security and data sovereignty
  • +Flexible integration capabilities and modular architecture
  • +Scalable deployments tailored to business needs

Limitations

  • −Occasional performance lags and platform slowness
  • −Limited customization options in lower-tier plans
  • −Pricing perceived as high relative to features for smaller businesses

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Strengths

  • +Easy to deploy AI workloads with minimal setup
  • +Strong autoscaling capabilities
  • +Flexible pricing for variable usage
  • +Good integration with ML frameworks

Limitations

  • −Some data types stored in the US by default
  • −EU region processing incurs a price multiplier
  • −No ISO 27001 certification confirmed
  • −HIPAA requires Enterprise plan

Data residency & compliance

STACKIT
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EU data residency
Yes, for all customers
Available on some plansEU region processing is available on request, but some data types are stored in the US by default.
Transfer mechanism
Not required — data stays in the EU
Standard Contractual Clauses
DPA
not established
Published →
Sub-processors
not established
Listed →
Certifications
ISO 27001, ISO 27017, ISO 27018, ISO 20000, ISO 50001, BSI C5 Type 2, ISAE 3000/SOC 2, ISAE 3402
SOC 2 Type II

Pricing

STACKIT

No published pricing we could verify.

Pricing is consumption-based and varies by service. Use the STACKIT Calculator for cost transparency.

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  • Starter Free to start Usage-based100 containers · 10 GPU concurrency · 200 deployed apps
  • Team On request Usage-based5,000 containers · 50 GPU concurrency · 1,000 deployed apps
  • Enterprise Custom Usage-basedCustom limits and log retention · Custom domains · Private Slack support

Compute billed per second; egress billed per GiB after included allowance. EU region processing incurs a 1.15×–1.75× base-price multiplier.

Features

STACKIT

Cloud Infrastructure
IaaS, PaaS, and Kubernetes services, Sovereign cloud infrastructure, Hourly consumption-based billing, Project-specific invoicing
Cost Transparency
STACKIT Calculator for individual cost estimation, Monthly cost tracking via STACKIT portal, No hidden costs
Marketplace & Integrations
Curated third-party solutions on sovereign cloud, Integration of STACKIT cloud resources

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Compute and jobs
Serverless CPU/GPU containers, Autoscaling, Distributed/batch execution, Scheduled jobs and cron jobs
AI training and inference
Fine-tuning, Reinforcement learning, Model evaluation, Model-serving endpoints
Storage and data primitives
Volumes, Images, Dicts and Queues, Secrets management
Web apps and endpoints
ASGI app support, Custom domains, Web Functions
Operations and observability
Dashboard, Logs and metrics, Secrets management, Budgets and deployment controls
See STACKIT →More Modal alternatives