The UK Pavilion has been designed to display a series of AI-generated poems during the international event, which opens in Dubai this week.
Constructed from cross-laminated timber, the cone-shaped pavilion has a circular facade made from protruding slats.
Poems created from words submitted by visitors and generated by AI will be written in English and Arabic using LED lights on the facade.
"Shaped like a giant wooden conical musical instrument, the UK Pavilion gathers words donated by each visitor," Devlin told Dezeen.
"It uses an advanced machine learning algorithm to generate the cumulative collective poem which illuminates its twenty-metre diameter facade."
The structure, which is the first UK pavilion designed by a female designer, aims to draw attention to both the growing importance of algorithms and the diversity of the UK.
"Algorithms are among us, they are an ever-growing part of our culture, their output is based on what they are trained on and who trains them," said Devlin.
"The pavilion is at once an expression of the ideal of a culturally diverse Britain that I grew up with, tempered with our growing awareness of the part algorithms play in shaping the future of our culture."
Within the pavilion, there will not be an exhibit. "The building is the exhibit", explained Devlin.
Instead, there is a curved void with walls covered in LED tiles that will also display donated words. This will be paired with a soundscape drawn from choirs from different ethnicities all over the UK.
Devlin hopes that the pavilion will project a sense of the UK's openness to the 25 million visitors expected to the expo.
"A sense of Britain as a place that's open, welcoming, questioning, uncertain, contradictory, inconsistent, fallible, sometimes nonsensical, majestic, comical, beautiful, and accessible to all," she said.
The pavilion was designed with structural engineer Atelier One, environmental design consultant Atelier Ten, executive architect Veretec and creative agency Avantgarde.
It was built from cross-laminated timber rather from concrete or steel to reduce its environmental impact.
"The pavilion is an act of European and international collaboration: its cross-laminated timber is thoroughly European: grown and assembled in Austria and Italy," said Devlin.
"The LED tiles were engineered in Belgium and manufactured in China, the algorithm was engineered in California, the list goes on..."
The pavilion is the UK's contribution to the Dubai Expo 2020, which opens to the public on 1 October.
It follows Wolfgang Buttress' beehive-inspired UK Pavilion at the Milan Expo in 2015 and Thomas Heatherwick's Seed Cathedral, which was created for Shanghai Expo 2010.
Devlin sees her pavilion as sharing similar ideals to these two past pavilions.
"The poetry has a tentative, provisional, vulnerable and inquisitive quality – I think both Wolfgang Buttress and Thomas Heatherwick successfully avoided any trace of national bombast in their beautiful works for Milan and Shanghai and I have very much tried to continue their thread."
The Dubai Expo is the latest World Expo – international exhibitions that showcase architecture and innovation by countries from all over the world and take place every five years. Dubai will be followed by the Expo 2025 Osaka in four years time.
Photography is by Ry Galloway and Alin Consstantin, courtesy of Es Devlin.