Company intelligence
Cosine
Building frontier AI for sovereign environments
About Cosine
Cosine is building frontier model intelligence. Our models have topped public benchmarks for two consecutive years, outperforming OpenAI, Anthropic, Mistral, and DeepSeek. We are also Britain's sovereign AI frontier lab. Selected by the UK government for its £500m Sovereign AI programme, we are the first company to train, own, and deploy a fully sovereign AI model entirely on UK soil with access to the Isambard-AI supercomputer. Cosine can be deployed air-gapped and on-premise for defence, national security, and critical infrastructure, where foreign AI is legally off the table.
Verified activity
Signals from Cosine
5 published signals
Products & Services
Cosine builds models and harnesses together around the principle of greater control over agents being directed and evaluated.
Reported by Cosine
Products & Services
Cosine released an early version of Lumen Sovereign, an AI model trained entirely on UK soil, running on an Apple Mac Studio in the company's office.
Reported by Yang Li
Products & Services
Cosine is collaborating on a nuclear-specific AI model for civil and defence nuclear sectors with PA Consulting.
Reported by Cosine
Partnerships
Cosine announced that PA Consulting is joining the Lumen Sovereign coalition to help identify and shape practical deployments for sovereign AI across highly regulated and critical sectors.
Reported by Cosine
Presence & Recognition
Cosine is hosting an upcoming webinar on 10 September 2026 featuring Tom Dowley, Sarah Carthy, and Karan Nisar discussing sovereign AI in practice.
Reported by Cosine