Powerful AI.
Private by hardware.

Run cloud-scale models on sensitive data without exposing it to the cloud operator, the model host or us.

Or talk to us about your use case

The data that matters most is the data you can't share. Until now, that meant AI couldn't touch it.

Superintelligence will need your most sensitive data. Cortium is where it can work on it, and no one else can see it.

Stop choosing between
capability and confidentiality.

Public AI APIs

Model power

Frontier models

Who can see your data

Processed by the provider, under its own controls.

Local models

Model power

Limited by the hardware you own

Who can see your data

Stays inside your infrastructure.

Cortium

Model power

Cloud-scale open-weight models on confidential GPUs

Who can see your data

Decrypted only inside an environment you verified.

Two ways to use Cortium.

Inference API

Confidential inference behind a familiar API. Pay per million tokens.

  • Leading open-weight models
  • OpenAI-compatible SDK with verification built in
  • Confidential CPU and GPU capacity, run by us
Request API access

Private Deployment

Dedicated confidential GPU capacity for one organisation, in the cloud you choose.

  • An isolated environment that is yours alone
  • Your keys and your release policies
  • Reserved capacity for your workloads
Talk to us

Confidential computing protects data while it is processed. It does not keep data on your premises. If that is a hard requirement, talk to us first.

Everything your security
team will ask for.

Attestation report

PlatformAMD SEV-SNP
Measurement9f3a…41c1
SignatureValid
PolicyPass
Remote attestation. Check the hardware and code before data leaves.

claims-v4

Approved code only
Same hardware family
Debug mode off
Allow export
Key released to 9f3a…41c1
Key release by policy. Keys reach only environments you approved.

Runtime

Plaintext logging
Outbound network
Operator shell
Attested image only
Locked-down runtime. No plaintext logs, no outbound network, no operator shell.
08:42:10Attestation verified
08:42:11Key released
08:42:11Session opened
08:42:14Inference complete
08:42:14Session closed
Audit trail. Every verification and release, on record.

Verify first. Then compute.

Your app
Cortium
Connect. Call a familiar API. The SDK does the rest.

Before any data is sent

Genuine hardware
Approved code
Expected configuration
Verify. Before sending anything, the SDK checks signed evidence from the hardware.

Released to 9f3a…41c1

Protect. Data travels encrypted. Keys are released only by your policy.

Protected memory

Summary → your app
Compute. The model runs in protected memory. Only the result comes back.

Built for regulated work.

The infrastructure underneath, for teams whose data can't leave their control.

Transaction review

Flag unusual transfers
Explain the pattern
Banking. Transaction review

Claims triage

Summarise the file
Spot inconsistencies
Insurance. Claims triage

Record summaries

Condense the history
Draft the referral
Healthcare. Record summaries

Document search

Search the archive
Answer with sources
Public sector. Document search

Private AI features

Ship confidential inference
Prove it to customers
Software. Private AI features

Bring the workload
you've held back.

We're working with a small group of design partners. Tell us where to reach you.

Prefer to talk first? Discuss your use case · Privacy