Z1 Code.
Built around
software.
Tessen’s proprietary coding model family, with access for authorized developers and developer-designated employees.

Business access is role-based; developer-designated employees may be provisioned according to the agreed configuration. Released capability and availability require confirmation.
Model intelligence.
Developer context.
Z1 Code is the model family. ZERO is the coding agent. Tessen Code is the product experience across development surfaces. Keeping those roles distinct makes it easier to choose the access and workflow that fit your work.
Explore Tessen CodeChoose an
authorized access path.
Use Platform or the relevant Business agreement to confirm availability, model-family entitlements and applicable data-handling conditions. Proprietary family access follows the authorized API-only policy.
Developer gateway Developer TermsEvaluate the work.
Before you scale.
Evaluate a model against the tasks, data and controls relevant to your environment. Our research agenda describes the work; validated results belong alongside the evidence and evaluation method.
Research agenda