--- title: Cosine rallies UK giants to build a sovereign AI model description: UK AI startup Cosine has assembled a coalition of major British institutions — including BT, HSBC, Lloyds, NatWest, BAE Systems, and others — to co-develop... canonical: https://daily.dev/posts/cosine-rallies-uk-giants-to-build-a-sovereign-ai-model-zcebymanm twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Cosine rallies UK giants to build a sovereign AI model | daily.dev og:description: UK AI startup Cosine has assembled a coalition of major British institutions — including BT, HSBC, Lloyds, NatWest, BAE Systems, and others — to co-develop... og:url: https://daily.dev/posts/cosine-rallies-uk-giants-to-build-a-sovereign-ai-model-zcebymanm og:image: https://api.daily.dev/og/posts/ZcebymAnM.png og:image:alt: Cosine rallies UK giants to build a sovereign AI model og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Cosine rallies UK giants to build a sovereign AI model **[The Next Web](https://daily.dev/sources/tnw)** · 4 min read · 0 upvotes · 0 comments ## Summary UK AI startup Cosine has assembled a coalition of major British institutions — including BT, HSBC, Lloyds, NatWest, BAE Systems, and others — to co-develop Lumen Sovereign, billed as Britain's first sovereign frontier AI model. The model will be trained entirely on the Isambard-AI supercomputer using UK government compute funding, with no dependence on foreign infrastructure and support for air-gapped deployments. Cosine, a Y Combinator-backed lab that has topped coding benchmarks against OpenAI and Anthropic despite raising only $8mn, plans to build the model from scratch on proprietary datasets covering 30+ regulated workflows, targeting a late-2026 launch. The initiative addresses a core concern for defence contractors, banks, and critical infrastructure operators: that sending sensitive data to US-based AI providers is legally and operationally untenable. The coalition partners have signed memoranda of understanding, though no binding contracts exist yet. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How the UK Is Turning Sovereign AI Ambition Into Action With NVIDIA Technologies](https://daily.dev/posts/how-the-uk-is-turning-sovereign-ai-ambition-into-action-with-nvidia-technologies-d6xakzflv) · NVIDIA · 0 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#ai-governance](https://daily.dev/tags/ai-governance) [View this post on daily.dev](https://daily.dev/posts/cosine-rallies-uk-giants-to-build-a-sovereign-ai-model-zcebymanm) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Cosine rallies UK giants to build a sovereign AI model","url":"https://daily.dev/posts/cosine-rallies-uk-giants-to-build-a-sovereign-ai-model-zcebymanm","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/cosine-rallies-uk-giants-to-build-a-sovereign-ai-model-zcebymanm"},"datePublished":"2026-06-08T13:13:27.670Z","dateModified":"2026-06-08T13:13:47.663Z","description":"UK AI startup Cosine has assembled a coalition of major British institutions — including BT, HSBC, Lloyds, NatWest, BAE Systems, and others — to co-develop...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8309bf3c2f3b5fa14ae58e4a07594ae1?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8309bf3c2f3b5fa14ae58e4a07594ae1?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"The Next Web","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"The Next Web","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/tnw","url":"https://daily.dev/sources/tnw"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/cosine-rallies-uk-giants-to-build-a-sovereign-ai-model-zcebymanm","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"llm,ai-governance","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"The Next Web","item":"https://daily.dev/sources/tnw"},{"@type":"ListItem","position":3,"name":"Cosine rallies UK giants to build a sovereign AI model"}]} ```