The University of Manchester (lead) with the University of Cambridge, funded by UKRI
UKRI AI CDT in Decision Making for Complex Systems
The UKRI AI Centre for Doctoral Training in Decision Making for Complex Systems is a four-year PhD programme led by the University of Manchester with the University of Cambridge. It trains AI researchers to build machine learning that copes with uncertainty in complex systems, from radio astronomy and particle physics to engineered microbes and new materials. Unlike most centres, it asks applicants to choose an advertised project at the outset, then gives them a taught first year in Manchester before three years of research.
- Level
- PhD
- Study or work in
- United Kingdom (The University of Manchester, then Manchester or Cambridge)
- Who can apply
- A 2:1 in a directly relevant subject, or any 2:1 with a relevant master's at merit; IELTS 6.5; international students up to 30 percent of a cohort
- What it covers
- Tuition fees, a tax-free stipend of 31,000 pounds for home students in 2026-27 (the UKRI minimum for international students) and funds for conferences and research
- Length
- Four years: a taught first year, then three years of research
- Application window
- Projects published in the autumn; deadline in early December (2026 entry: 5 December 2025); interviews January to March; decisions March to April
Open now
No call is open right now. Projects published in the autumn; deadline in early December (2026 entry: 5 December 2025); interviews January to March; decisions March to April
How to apply
Choose one of the CDT's advertised projects and contact its supervisor, then apply on the University of Manchester website for 'PhD Artificial Intelligence CDT', naming the project and choosing Research Council funding. Supervisors interview first, then an admissions panel.
Research themes
The centre works on three themes. Uncertainty in complex systems develops probabilistic machine learning that quantifies uncertainty so that people and machines can decide together and explore new parameter spaces. Decision-making with humans in the loop models machine learning tasks alongside the people who use them, because users often cannot fully state their requirements, and tackles experimental design from scarce data and shifts between domains. Decision-making for machine learning systems looks at automated ways to fit machine learning components safely and accurately into large scientific operations that produce vast amounts of data.
Across all three, the centre puts weight on interpretable and explainable models, for trust and for ethical and legal reasons. A cross-cutting theme adapts the methods for business with industry partners and the Productivity Institute, which is based in Manchester and has a presence in Cambridge.
The taught year in Manchester
All students spend the first year at the University of Manchester, in its Department of Computer Science. Four core units of 15 credits each cover reasoning and learning under uncertainty; machine learning and the physical world; reinforcement learning; and an introduction to responsible and reproducible AI, which combines operationalising ethics, team coding hackathons and a challenge to reproduce the results of a published conference paper. A 30-credit research project teaches students to run and report a technical project, and two elective units come from a long list spanning machine learning, robotics, security, health data science, optimisation and finance.
Years two to four are given to the doctoral project, at Manchester or Cambridge, with an annual written report and viva at the end of each year. Students can use the training of Manchester's Science and Engineering Doctoral Academy, sessions in media, policy and public engagement, placements with industry partners, a journal club, one external summer or winter school a year and an annual CDT conference to which partners are invited.
Funding and eligibility
For students with home fee status, the centre pays tuition fees in full and a tax-free stipend of 31,000 pounds in 2026-27 under the TechExpert pilot, pro rata for part-time study and normally rising with inflation, plus funding for conferences and research. International applicants are encouraged but receive the standard UKRI minimum stipend, which the centre gives as 21,000 pounds for 2026-27. EPSRC rules cap international students at 30 percent of a cohort, and because funding for fees is fixed at the UK level, the centre says it takes on finding other sources for the international difference.
The standard entry requirement is an upper second-class honours degree in a subject directly relevant to the PhD, or any 2:1 plus a master's at merit in a relevant subject, or the international equivalent; other combinations of qualifications and experience may be considered. English requirements are IELTS 6.5 overall, with 6.0 in writing and listening and 5.5 in the other parts, or equivalent TOEFL and PTE scores.
How selection works
- Choose a project. Browse the projects the centre publishes in the autumn and contact the supervisor of the one you want. If unsure, ask the CDT admissions team.
- Apply online. Apply on the University of Manchester website for 'PhD Artificial Intelligence CDT' (not PhD Computer Science), naming your project and choosing Research Council as the funding source, with a one- or two-page supporting statement, transcripts, a CV and two academic referees.
- Supervisory panel. Applications go to the project supervisors, who invite those they want to progress to a first-stage interview in January or February.
- Admissions panel. Candidates who pass the first stage have a second interview with the admissions panel in February or March; decisions follow in March or April.
Questions
Where will I study?
The first year is at Manchester for everyone. The research years are at Manchester or Cambridge, depending on the project you chose.
Is the stipend the same for everyone?
No. Home students receive 31,000 pounds in 2026-27 under TechExpert; international students receive the standard UKRI minimum.
How many international students can join?
At most 30 percent of a cohort, under EPSRC rules.
Are there projects open now?
Not at the time of checking. Projects for the next intake appear in the autumn; the apply page carries the timeline.
Do I need a master's?
Not if you hold a 2:1 in a directly relevant subject. With a 2:1 in another subject, a relevant master's at merit is expected.
Related programmes
Sources
- AI Decisions CDT (homepage)
- AI Decisions CDT: Apply
- AI Decisions CDT: Programme
- AI Decisions CDT: Research themes
- AI Decisions CDT: Cohort research projects
- AI Decisions CDT: Projects
- The University of Manchester: PhD AI in Decision Making for Complex Systems CDT
- The University of Manchester: new UKRI Centre for Doctoral Training (31 October 2023)
- UKRI: artificial intelligence Centres for Doctoral Training
- GOV.UK: TechFirst Doctoral Support
Official pages last checked 27 September 2026.