Cosine builds Lumen, code-specialist AI models you can deploy where your data lives for secure, sovereign coding.
What it does
Cosine develops Lumen, a family of AI models trained exclusively on real production code to write software rather than act as generalists. It emphasizes deploying models where your data lives — including air-gapped and sovereign setups — with security, visibility and ownership, offered as coding agents, a CLI and cloud surfaces.
How to use: Assign tasks from Jira or Linear, collaborate in real-time, and integrate with Slack. Try it for free on open-source repositories or sign up for your own codebase.
Core features
Best for
Pricing
Reviews
Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.
Tutorials
Step-by-step: exactly how to get things done with it.