Cosine

Cosine, from the Sovereign AI Lab, provides AI models and coding agents built for organizations needing advanced AI in secure or regulated environments, operating in coalition with the Alan Turing Institute, BAE Systems, HSBC, Lloyds, and Deloitte. Three model tiers are offered: Lumen Scout (cost-efficient, runs locally on-device), Lumen Outpost (higher-quality, production tasks), and Lumen Sovereign (frontier-scale reasoning, coming soon) — optimized for maintainable, production-quality output and supporting niche languages like COBOL, Fortran, and Verilog alongside modern ones. Deployment options span public cloud, managed single-tenant, or fully air-gapped environments, accessible via CLI or a cloud platform. Pricing details exist at a dedicated page but aren't shown on the homepage; a working CLI install and documented benchmarks against GPT and Gemini support its real, operational status. Good fit for a regulated organization (finance, defense, government) that needs AI coding assistance in an air-gapped or otherwise tightly controlled environment.