Control every layer of your AI stack
Deploy models where your data lives, with security, visibility, and ownership built in.
Lumen
The stack spans the application layer, the model layer, and the training layer, allowing teams to adopt AI coding agents without giving up quality, control, or deployment flexibility.
Real benchmarks. Real results.
GPT-5.4
Gemini 3.1 Pro
GPT-5.5
Kimi K2.6
Lumen Outpost
Trusted by engineers at
Built to fit your security environment
Start quickly in Cosine Cloud, or move into a dedicated tenant or fully air-gapped deployment when your infrastructure, data, and compliance requirements demand it.
Public Cloud
Fully managed Cosine for teams whose requirements fit our standard cloud controls.
Managed single-tenant cloud
A private Cosine environment operated for your organization with enterprise controls.
Fully air-gapped
For organisations that need Cosine to run entirely inside their own security perimeter.