To many, they are art's next big thing — digital images of jellyfish pulsing and blurring in a dark pink sea, or dozens of butterflies fusing together into a single organism.
The Argentine artist Sofia Crespo, who created the works with the help of artificial intelligence, is part of the "generative art" movement, where humans create rules for computers which then use algorithms to generate new forms, ideas and patterns.
The field has begun to attract huge interest among art collectors — and even bigger price tags at auction.
US artist and programmer Robbie Barrat — a prodigy who is only 22 — sold a work called Nude Portrait #7 Frame #64 at Sotheby's in March for $821,000.
That came almost four years after the French collective Obvious sold a work at Christie's titled Edmond de Belamy — largely based on Barrat's code — for $432,500.
A ballet with machines
Collector Jason Bailey said that generative art was "like a ballet between humans and machines".
But the nascent scene could already be on the verge of a major shake-up, as tech companies begin to release AI tools that can whip up photorealistic images in seconds.
Artists in Germany and the US blazed a trail in computer-generated art during the 1960s.
The V&A museum in London keeps a collection going back more than half a century, one of the key works being a 1968 piece by German artist Georg Nees called Plastik 1.
Nees used a random number generator to create a geometric design for his sculpture.
'Babysitting' computers
Nowadays, digital artists work with supercomputers and systems known as generative adversarial networks, or GANs, to create images far more complex than anything Nees could have dreamt of.
GANs are sets of competing AIs — one generates an image from the instructions it is given, the other acts as a gatekeeper, judging whether the output is accurate.
artist and programmer
If it finds fault, it sends the image back for tweaks and the first AI gets back to work for a second try to beat the gamekeeper.
But artists such as Crespo and Barrat insist that the artist is still central to the process, even if their working methods are not traditional.
"When I'm working this way, I'm not creating an image. I'm creating a system that can create images," Barrat said.
Crespo said she thought her AI machine would be a true "collaborator", but in reality it is incredibly tough to get even a single line of code to generate satisfactory results.
She said it was more like "babysitting" the machine.
Tech companies are now hoping to bring a slice of this rarefied action to regular consumers.
Google and OpenAI are both touting the merits of new tools they say bring photorealism and creativity without the need for coding skills.
Enter the 'transformers'
They have replaced GANs with more user-friendly AI models called "transformers" that are adept at converting everyday speech into images.
Google Images' webpage is filled with absurdist images generated by instructions such as: "A small cactus wearing a straw hat and neon sunglasses in the Sahara desert."
OpenAI boasts that its Dall·E 2 tool can offer any scenario in any artistic style, from the Flemish masters to Andy Warhol.
Although the arrival of AI has led to fears of humans being replaced by machines in fields from customer care to journalism, artists see the developments more as an opportunity than a threat.
Crespo has tried out Dall·E 2 and said it was a "new level in terms of image generation in general" — though she prefers her GANs.
"I very often don't need a model that is very accurate to generate my work, as I like very much when things look indeterminate and not easily recognisable," she said.
Camille Lenglois of Paris's Centre Pompidou — Europe's largest collection of contemporary art — also played down any idea that artists were about to be replaced by machines.
She said machines did not yet have the "critical and innovative capacity".
"The ability to generate realistic images does not make one an artist."
Borderless: what to expect from Jeddah's new digital art museum — in pictures
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More than 50 digital artworks will feature at Jeddah's new digital art museum, teamLab Borderless, when it opens in 2023. Pictured here, 'The Way of the Sea, Flying Beyond Borders - Colours of Life'. All photos: teamLab -
The 15-metre tall teamLab composition 'Golden Sand Waterfall' will be an exclusive installation in Jeddah. -
'Megalith Flames' is another artwork that will be unveiled at the museum in Jeddah when it opens next year. -
'Birth', a composition by the teamLab group, which was founded in Japan in 2001. -
'Typhoon Balls and Weightless Forest of Resonating Life' by teamLab is another work that goes beyond conventional artistic barriers. -
The immersive 'Universe of Water Particles on a Rock where People Gather' by teamLab. -
'Forest of Resonating Lamps'. -
'Universe of Water Particles on Au-dela Des Limites'. -
A visitor takes in teamLab's 'Forest of Resonating Lamps_Spring Mountain'. -
Another aspect of teamLab's 'Forest of Resonating Lamps'. -
'Soft Terrain and Granular Topography_Spring'. In Jeddah in 2023, visitors will be able to experience teamLab's work for themselves. -
'Red in the Blue II' by teamLab. Jeddah is one of the collective's destinations as it moves outside its base in Tokyo. -
'Memory of Topography_Autumn_Autumn Leaves' by teamLab. -
'Forest of Flowers and People' by teamLab. -
'Wander through the Crystal World' by teamLab. -
'Soft Terrain and Granular Topography_Spring' by teamLab. -
'Memory of Topography_Autumn_Sweet Olive' by teamLab. -
'Reversible Rotation, Flying Beyond Borders - One Stroke, Cold Light' by teamLab. -
'Rapidly Rotating Bouncing Sphere Caterpillar House' by teamLab. -
'Memory of Topography_Summer_Rain' by teamLab. -
A view of teamLab Borderless Tokyo, which opened in 2018. -
'Forest of Flowers and People Lost' by teamLab.
