The UK government has announced a major AI biosecurity initiative worth up to £300 million, combining public funding and technology-company commitments to help detect biological threats and strengthen the country's preparedness for future health emergencies.

The new AI Biosecurity Lab will receive £100 million in government funding, alongside up to £200 million in commitments from OpenAI and Anthropic. The initiative aims to use advanced artificial intelligence to identify emerging biological risks and support research into vaccines, treatments and other medical countermeasures.

The lab will work with government agencies, universities, life-sciences organisations and AI developers. Its partners are expected to include the UK Health Security Agency, the Animal and Plant Health Agency and the Defence Science and Technology Laboratory.

The initiative reflects growing concern that increasingly capable AI systems could create both scientific opportunities and new biological security risks. The government says the lab will focus on strengthening the UK's ability to understand, prevent, detect and respond to biological threats.

OpenAI has committed £100 million in computing and model credits, while Anthropic has pledged up to £100 million in model credits, model access and technical support. Google DeepMind and UK-based Basecamp Research are also expected to contribute research expertise and AI-for-science capabilities.

The project places the UK at the intersection of AI innovation, biotechnology and national security. Its impact will depend on how quickly the lab develops practical tools, establishes effective safeguards and translates research into real-world preparedness.