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Synthesia is a platform that lets users create AI-generated clips with human avatars that can speak in multiple languages.

Synthesia

LONDON — Synthesia, a video platform that uses artificial intelligence to generate clips featuring multilingual human avatars, has raised $180 million in an investment round valuing the startup at $2.1 billion.

That’s more than than double the $1 billion Synthesia was worth in its last financing in 2023.

The London-based startup said Wednesday that the funding round was led by venture firm NEA with participation from Atlassian Ventures, World Innovation Lab and PSP Growth.

NEA counts Uber and TikTok parent company ByteDance among its portfolio companies. Synthesia is also backed by chip giant Nvidia.

Victor Riparbelli, CEO of Synthesia, told CNBC that investors appraised the businesses differently from other companies in the space due to its focus on “utility.”

“Of course, the hype cycle is beneficial to us,” Riparbelli said in an interview. “For us, what’s important is building an actually good business.”

Synthesia isn’t “dependent” on venture capital — as opposed to companies like OpenAI, Anthropic and Mistral, Riparbelli added.

These startups have raised billions of dollars at eye-watering valuations while burning through sizable amounts of money to train and develop their foundational AI models.

Read more CNBC reporting on AI

Synthesia’s not the only startup shaking up the world of video production with AI. Other startups offer solutions for producing and editing video content with AI, like Veed.io and Runway.

Meanwhile, the likes of OpenAI and Adobe have also developed generative AI tools for video creation.

Eric Liaw, a London-based partner at VC firm IVP, told CNBC that companies at the application layer of AI haven’t garnered as much investor hype as firms in the infrastructure layer.

“The amount of money that the application layer companies need to raise isn’t as large — and therefore the valuations aren’t necessarily as eye popping” as companies like Nvidia,” Liaw told CNBC last month.

Riparbelli said that money raised from the latest financing round would be used to invest in “more of the same,” furthering product development and investing more into security and compliance.

Last year, Synthesia made a series of updates to its platform, including the ability to produce AI avatars using a laptop webcam or phone, full-body avatars with arms and hands and a screen recording tool that has an AI avatar guide users through what they’re viewing.

On the AI safety front, in October Synthesia conducted a public red team test for risks around online harms, which demonstrated how the firm’s compliance controls counter attempts to create non-consensual deepfakes of people or use its avatars to encourage suicide, adult content or gambling.

The National Institute of Standards and Technology test was led by Rumman Chowdhury, a renowned data scientist who was formerly head of AI ethics at Twitter — before it became known as X under Elon Musk.

Riparbelli said that Synthesia is seeing increased interest from large enterprise customers, particularly in the U.S., thanks to its focus on security and compliance.

More than half of Synthesia’s annual revenue now comes from customers in the U.S., while Europe accounts for almost half.

Synthesia has also been ramping up hiring. The company recently tapped former Amazon executive Peter Hill as its chief technology officer. The company now employs over 400 people globally.

Synthesia’s announcement follows the unveiling of Prime Minister Keir Starmer’s 50-point plan to make the U.K. a global leader in AI.

U.K. Technology Minister Peter Kyle said the investment “showcases the confidence investors have in British tech” and “highlights the global leadership of U.K.-based companies in pioneering generative AI innovations.”

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Nvidia’s beat and raise should wow even its most hardened critics, and the stock soars

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Nvidia's beat and raise should wow even its most hardened critics, and the stock soars

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Nvidia CEO Jensen Huang rejects talk of AI bubble: ‘We see something very different’

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Nvidia CEO Jensen Huang rejects talk of AI bubble: 'We see something very different'

Jensen Huang, chief executive officer of Nvidia Corp., during the US-Saudi Investment Forum at the Kennedy Center in Washington, DC, US, on Wednesday, Nov. 19, 2025.

Stefani Reynolds | Bloomberg | Getty Images

In the weeks leading up to Nvidia’s third-quarter earnings report, investors debated whether the markets were in an AI bubble, fretting over the massive sums being committed to building data centers and whether they could provide a long-term return on investment.

During Wednesday’s earnings call with analysts, Nvidia CEO Jensen Huang began his comments by rejecting that premise.

“There’s been a lot of talk about an AI bubble,” Huang said. “From our vantage point we see something very different.”

In many respects, Huang’s remarks are to be expected. He’s leading the company at the heart of the artificial intelligence boom, and has built its market cap to $4.5 trillion because of soaring demand for Nvidia’s graphics processing units.

Huang’s smackdown of bubble talk matters because Nvidia counts every major cloud provider — Amazon, Microsoft, Google, and Oracle — as a customer. Most of the major AI model developers, including OpenAI, Anthropic, xAI and Meta, are also big buyers of Nvidia GPUs.

Read more CNBC reporting on AI

Huang has deep visibility into the market, and on the call he offered a three-pronged argument for why we’re not in a bubble.

First, he said that areas like data processing, ad recommendations, search systems, and engineering, are turning to GPUs because they need the AI. That means older computing infrastructure based around the central processor will transition to new systems running on Nvidia’s chips.

Second, Huang said, AI isn’t just being integrated into current applications, but it will enable entirely new ones.

Finally, according to Huang, “agentic AI,” or applications that can run without significant input from the user, will be able to reason and plan, and will require even more computing power.

In making the case of Nvidia, Huang said it’s the only company that can address the three use cases.

“As you consider infrastructure investments, consider these three fundamental dynamics,” Huang said. “Each will contribute to infrastructure growth in the coming years.”

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“The number will grow,” CFO Colette Kress said on the call, saying the company was on track to hit the forecast.

Prior to Wednesday’s results, Nvidia shares were down about 8% this month. Other stocks tied to the AI have gotten hit even harder, with CoreWeave plunging 44% in November, Oracle dropping 14% and Palantir falling 17%.

Some of the worry on Wall Street has been tied to the debt that certain companies have used to finance their infrastructure buildouts.

“Our customers’ financing is up to them,” Huang said.

Specific to Nvidia, investors have raised concerns in recent weeks about how much of the company’s sales were going to a small number of hyperscalers.

Last month, Microsoft, Meta, Amazon and Alphabet all lifted their forecasts for capital expenditures due to their AI buildouts, and now collectively expect to spend more than $380 billion this year.

Huang said that even without a new business model, Nvidia’s chips boost hyperscaler revenue, because they power recommendation systems for short videos, books, and ads.

People will soon start appreciating what’s happening underneath the surface of the AI boom, Huang said, versus “the simplistic view of what’s happening to capex and investment.”

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Asian chip names rally as Nvidia forecasts hotter-than-expected sales after earnings beat

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Asian chip names rally as Nvidia forecasts hotter-than-expected sales after earnings beat

C. C. Wei, chief executive officer of Taiwan Semiconductor Manufacturing Co. (TSMC), left, and Jensen Huang, chief executive officer of Nvidia Corp., during the TSMC sports day event in Hsinchu, Taiwan, on Saturday, Nov. 8, 2025.

Bloomberg | Bloomberg | Getty Images

Asian chip stocks rallied in early trading Thursday after American AI chip darling Nvidia beat Wall Street expectations and issued stronger-than-expected guidance for the fourth quarter. 

South Korea’s SK Hynix popped around 4%. The memory chip maker is Nvidia’s top supplier of high-bandwidth memory used in AI applications. 

Samsung Electronics, which also supplies Nvidia with memory, was also up nearly 4%. The company has been working to catch up to SK Hynix in high-bandwidth memory to land more contracts with Nvidia. 

Taiwan Semiconductor Manufacturing Company, the world’s largest contract chipmaker, which produces most of Nvidia’s chip designs, rose 4% in Taipei.

“We expect Nvidia’s results to drive higher earnings estimates across the sector, including for its primary GPU supplier TSMC, memory vendors SK Hynix and Samsung, and the broader Asian subcomponent and assembly value chain,” Rolf Bulk, equity research analyst at New Street Research, told CNBC.

In Tokyo, Renesas Electronics, a key Nvidia supplier, added about 4%. Tokyo Electron, which provides essential chipmaking equipment to foundries that manufacture Nvidia’s chips, gained 5.87%. Another Japanese chip equipment maker, Lasertec, was up about 6%. 

Japanese tech conglomerate SoftBank skyrocketed nearly 7%, though the firm recently offloaded its shares of Nvidia. Softbank owns the majority of British semiconductor company Arm, which supplies Nvidia with chip architecture and designs.

SoftBank is also involved in a number of AI ventures that use Nvidia’s technology, including the $500 billion Stargate project for data centers in the U.S.

Nvidia’s sales and outlook are closely watched by the technology industry as a sign of the health of the AI boom, and its strong earnings could ease recent fears regarding an AI bubble.  

“There’s been a lot of talk about an AI bubble,” Nvidia CEO Jensen Huang told investors on an earnings call. “From our vantage point, we see something very different.”

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