• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechAI

DeepSeek just flipped the AI script in favor of open-source—and the irony for OpenAI and Anthropic is brutal 

Sharon Goldman
By
Sharon Goldman
Sharon Goldman
AI Reporter
Down Arrow Button Icon
Sharon Goldman
By
Sharon Goldman
Sharon Goldman
AI Reporter
Down Arrow Button Icon
January 27, 2025, 4:54 PM ET
Sam Altman, chief executive officer of OpenAI.
Sam Altman, chief executive officer of OpenAI. Aaron Schwartz/Sipa/Bloomberg via Getty Images

DeepSeek, the Chinese AI startup, shocked the world after unveiling an AI model last week that rivals leading models like OpenAI’s o1, while claiming it cost far less to develop and required far fewer Nvidia chips—and giving it away for free. The fallout sent Nvidia’s stock plummeting today and left observers wondering: What does it mean for the most deep-pocketed AI startups, OpenAI and Anthropic, which sell their models to consumers and companies, as well as highly funded competitors like Mistral and Cohere? 

Recommended Video

The current moment is deeply ironic, Toronto-based AI developer and consultant Reuven Cohen told Fortune. DeepSeek released its AI model as open-source, meaning the company allowed researchers, developers, and other users to access the underlying code and its “weights” (which determine how the model processes information) to use, modify, or improve. That sounds a lot like what OpenAI said it would do when it was founded in 2015 as a nonprofit company that shared its research and techniques openly (as its name suggests). But OpenAI is now “by far, the most closed in every way possible,” Cohen said. 

Though DeepSeek did not release the data it used to train its R1 model, there are indications that it may have used outputs from OpenAI’s o1 to kick-start the training of the model’s reasoning abilities. This process of analyzing and learning from another model’s outputs is sometimes referred to as “reverse engineering.”

Open-source developers have been reverse-engineering OpenAI models like o1 for months, Cohen said. DeepSeek’s efforts make it clear that models can self-improve by learning from other models released by OpenAI, Anthropic, and others—which puts those companies’ existing business models, cost structures, and technological assumptions at risk. 

“The problem is that the companies have momentary advantages but haven’t built durable moats,” said Patrick Moorhead, founder of Moor Insights & Strategy. “Companies with proprietary leanings need a scale, time to market, cost, or 5X utility advantage to be successful. Both OpenAI and Anthropic are being outmaneuvered by open [source AI].” 

Many proponents of open-source AI have long predicted the commoditization of AI models. “If these models turn out to be pretty capable, which they really are looking like, and they’re very cheap, then there’s a world where companies stop using OpenAI at scale,” said William Falcon, CEO of Lightning AI, a software platform that allows users to train and deploy open-source AI models, including DeepSeek’s. 

“That also brings into question the valuation of all these companies,” he said, though he pointed out that OpenAI, which as of October 2024 was valued at $157 billion, and Anthropic, which is currently raising money on a $60 billion valuation, do have billions in revenue and are less speculative than other startups like Cohere and Mistral, which he said are “going to be the ones impacted the most by this.” 

In addition, DeepSeek’s success shows that open-source developers don’t even have to figure out the entire secret recipe created by a closed-model company like OpenAI, Falcon added. They just needed a few improved techniques to make the training of the model more efficient. 

Those improvements, he added, will quickly be implemented by other companies, including OpenAI, Anthropic, Meta, and Google. “I would be shocked if they haven’t already, since Friday, grabbed that stuff, implemented it, and probably already applied it,” he said.  

However, while this is definitely a moment to be introspective about why top U.S. AI researchers did not discover these techniques on their own, it doesn’t mean America’s entire market position on AI is really undone, or that OpenAI’s or Anthropic’s future is shaky. 

“I’m skeptical that we’re going to go from [billions of Nvidia chip commitments] from Microsoft and everyone else to, oh, we only need hundreds to train these frontier models,” said Daniel Newman, CEO and analyst at the Futurum Group, adding that OpenAI and others will be researching the accuracy of the DeepSeek techniques, and deciding whether their results can be replicated and implemented. 

Vaibhav Srivastav, a researcher at open-source platform Hugging Face, emphasized that he did not think OpenAI, Anthropic, and other model companies are in deep trouble. “I think the real moat is in the application layer,” he said, meaning that the value for these companies lies not just in building models but in how those models are integrated into applications. However, he added, “I do think DeepSeek must be a humbling moment for them.”  

Open-source AI experts say there is no schadenfreude, however. In fact, said Falcon, it’s all about moving the AI ball forward—including with OpenAI. If OpenAI had not “gone dark” in terms of sharing its research openly since the release of ChatGPT, he said, the U.S. would likely be further along capability-wise, since open-source collaboration drives progress. 

“But, of course, OpenAI would not have been as big a company,” he said. “And China would be just as far ahead.” 

But there is one more ironic twist at play in the DeepSeek narrative, said Cohen. What about Meta, which has spent the past two years touting Llama, its family of free open AI models? After all, Meta has positioned itself as the antithesis of OpenAI and Anthropic, yet DeepSeek has suddenly emerged as the real open-source disrupter. Meta has reportedly assembled four “war rooms” of engineers to respond to DeepSeek’s potential breakthrough AI developments. 

“OpenAI might be expensive and proprietary, but they’re still the most used platform by orders of magnitude,” he said. “Regardless, they’re gonna do well for a while.” The real question is, he said, “what the hell is Meta doing? This was theirs to lose.” 

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
Sharon Goldman
By Sharon GoldmanAI Reporter
LinkedIn icon

Sharon Goldman is an AI reporter at Fortune and co-authors Eye on AI, Fortune’s flagship AI newsletter. She has written about digital and enterprise tech for over a decade.

See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

Man wearing glasses and a sweatshirt.
C-SuiteWorkday
Workday shed $40 billion in value. Founder Aneel Bhusri is back with a $139 million bet he can turn it around
By Amanda GerutFebruary 13, 2026
3 hours ago
Mosseri walks away from courthouse
Big TechCEO salaries and executive compensation
Instagram boss reveals he’s paid $900K per year plus stock worth ‘tens of millions of dollars’ as he denies ‘addiction’ claims
By Jacqueline MunisFebruary 12, 2026
12 hours ago
shumer
AIEconomics
Matt Shumer’s viral blog about AI’s looming impact on knowledge workers is based on flawed assumptions
By Jeremy KahnFebruary 12, 2026
14 hours ago
A laptop displaying the OpenClaw logo
CybersecurityEye on AI
OpenClaw is the bad boy of AI agents. Here’s why security experts say you should beware
By Sharon GoldmanFebruary 12, 2026
15 hours ago
Markus Persson
Successthe future of work
Billionaire founder of Minecraft slams anyone advocating using AI to write code as ‘incompetent or evil’
By Preston ForeFebruary 12, 2026
15 hours ago
Demis Hassabis, chief executive officer of Google DeepMind
SuccessFortune 500: Titans and Disruptors of Industry
The CEO of Google DeepMind juggles another job as the founder of a multibillion-dollar startup by starting a second workday at 10 p.m.
By Emma BurleighFebruary 12, 2026
15 hours ago

Most Popular

placeholder alt text
Crypto
Bitcoin reportedly sent to wallet associated with Nancy Guthrie’s ransom letter providing potential clue in investigation
By Carlos GarciaFebruary 11, 2026
2 days ago
placeholder alt text
Economy
Some folks on Wall Street think yesterday’s U.S. jobs number is ‘implausible’ and thus due for a downward correction
By Jim EdwardsFebruary 12, 2026
21 hours ago
placeholder alt text
Economy
America’s national debt borrowing binge means interest payments will rocket to $2 trillion a year by 2036, CBO says
By Eleanor PringleFebruary 11, 2026
2 days ago
placeholder alt text
Economy
‘Nothing short of self-sabotage’: Watchdog warns about national debt setting new record in just 4 years
By Tristan BoveFebruary 11, 2026
2 days ago
placeholder alt text
Commentary
Something big is happening in AI — and most people will be blindsided
By Matt ShumerFebruary 11, 2026
2 days ago
placeholder alt text
Success
Ex–Google exec says degrees in law and medicine are a waste of time because they take so long to complete that AI will catch up by graduation
By Preston ForeFebruary 11, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.