Cosine builds Lumen, specialist coding AI models for production software, deployable in cloud, single-tenant or air-gapped setups.
What it does
The buildt.ai domain now hosts Cosine, whose Lumen models are coding-specialist AIs trained on real production code. Cosine offers a coding agent, CLI and cloud workspace, with models (Scout, Outpost, Frontier) tuned for niche and enterprise languages and deployable from public cloud to fully air-gapped.
Core features
Lumen specialist coding models
Coding agent for production tasks
Terminal-native CLI with MCP support
Cloud workspace for parallel tasks
Support for niche/enterprise languages (COBOL, Fortran, Verilog)
Public cloud, single-tenant or air-gapped deployment
Best for
→Writing and shipping production code
→Coding in legacy/niche languages
→Air-gapped or sovereign AI coding
→Parallel multi-agent coding tasks