b stack radar

CloudSigma vs Modal: Complete Comparison (2026)

An in-depth comparison of CloudSigma and Modal to help you choose the right tool for your business.

Last updated: November 2026

CloudSigma logo

CloudSigma

6.5/10

CloudSigma is a white-label sovereign IaaS platform that telcos, MSPs and datacenter operators resell as branded cloud, GPU and AI services.

Modal logo

Modal

6.7/10

Winner

Modal is a serverless cloud platform that runs Python code on GPUs and CPUs with per-second billing, aimed at teams building and serving AI applications.

Feature-by-Feature Comparison

Feature
CloudSigma logo
CloudSigma
Modal logo
Modal
Scores
Overall Rating6.5/106.7/10
Analytics5/106/10
Cost6/105/10
Customization9/107/10
Ease of Use5/108/10
Integration6/106/10
Scalability7/109/10
Security8/107/10
Support6/106/10
Pricing
Free planNoYes
Cheapest paid planContact for pricing$250/mo
Team
Estimated cost for 10 usersContact for pricing$250/mo
Team
Features
API and CLI
Multiple Regions
DDoS ProtectionNot listed
Object Storage
VPS HostingNot listed
Cloud Compute
Automatic BackupsNot listed
Managed WordPressNot listed
Serverless FunctionsNot listed
Dedicated ServersNot listed
Shared HostingNot listed

CloudSigma vs Modal cost by team size

The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.

Which One Should You Choose?

CloudSigma logo
Why choose CloudSigma

  • Higher Customization score (9/10 vs 7/10)
  • Higher Cost score (6/10 vs 5/10)

Modal logo
Why choose Modal

  • Has a free plan (CloudSigma does not)
  • Higher Ease of Use score (8/10 vs 5/10)
  • Higher Scalability score (9/10 vs 7/10)
  • Better fit for developers (9/10 vs 6/10)

Pros & Cons

CloudSigma logo
CloudSigma

Pros

  • CPU, RAM and storage are sized independently rather than in fixed instance types.
  • Per-second metering in five-minute billing segments avoids paying for idle hourly blocks.
  • A wide certification list covers ISO 27001, 27017 and 27018, SOC 2 and PCI-DSS.
  • The white-label model lets telcos and MSPs launch branded cloud services on revenue share, with no licence fees.
  • Terraform, Ansible and a REST API with pricing and billing endpoints support automation.

Cons

  • No public list prices, so costs require a pricing call.
  • Burst usage is charged at higher rates than subscription capacity, which makes bills harder to predict.
  • The public review footprint is small, and many reviews are years old.
  • The network uptime guarantee does not cover applications, per RFP.wiki.
  • Some users report friction during setup and support in edge cases.

Modal logo
Modal

Pros

  • GPUs from the T4 up to the B300 are available without quota requests or reservations, and workloads can burst to thousands of containers.
  • Per-second billing and scale-to-zero mean idle bursty inference workloads cost nothing.
  • Python developers define infrastructure in code and deploy with a single CLI command, with no Kubernetes or Dockerfiles needed.
  • The free Starter plan includes $30 a month of compute, and startup and academic credit programs are available.
  • Sandboxes support large numbers of concurrent isolated environments for AI agents and untrusted code.

Cons

  • Always-on or steady workloads can cost more than reserved GPU rentals from providers such as RunPod or Lambda.
  • Containers stay billable for 60 seconds after the last request by default, and keep-warm settings are a common source of bill surprises.
  • Region pinning raises prices by 1.15 to 1.75 times, and non-preemptible execution by 3 times.
  • SSO, audit logs, and HIPAA support are limited to the custom-priced Enterprise plan.
  • Credits from AWS, GCP, or Azure cannot be applied to Modal usage.

Not sold on either?

Frequently Asked Questions

Modal scores higher on our AI Software criteria: 6.7/10 against 6.5/10 for CloudSigma. The largest gap is in Ease of Use: 5/10 for CloudSigma and 8/10 for Modal.

Modal has a free plan; CloudSigma does not list one.

Modal is the better fit for developers: we rate it 9/10 for them, against 6/10 for CloudSigma.

Related Comparisons