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

The U.S. has a new horse in the race to build the best open-source AI model

Andrew Nusca
By
Andrew Nusca
Andrew Nusca
Editorial Director, Brainstorm
Down Arrow Button Icon
Andrew Nusca
By
Andrew Nusca
Andrew Nusca
Editorial Director, Brainstorm
Down Arrow Button Icon
October 6, 2026, 7:22 AM ET
Updated October 6, 2026, 7:22 AM ET
Reflection AI CEO Misha Laskin in San Jose, California on March 18, 2026. (Photo: David Paul Morris/Bloomberg/Getty Images)
Reflection AI CEO Misha Laskin in San Jose, California on March 18, 2026. David Paul Morris/Bloomberg/Getty Images
Google source logo
Add Fortune on Google for similar content.


Good morning. If there’s anyone who understands a war of attrition, it’s the U.S. military.

The Pentagon has reportedly halted using Anthropic’s Claude, finally, after blacklisting the San Francisco AI company in February and triumphing over a lawsuit about it in September. The delay is believed to be at least partly because of Claude’s deep integration in a Palantir platform that the Pentagon continues to rely on.

Though it’s unfair to say that the two sides have been exchanging blows all year—it’s a rather one-sided aggression from the feds—it is fair to say that Anthropic’s conflict with the Department of Defense adds up to a sort of litmus test: Are the company’s AI wares distinctive enough (or embedded enough) to, in their absence, substantially harm the intelligence gathering operations of one of the largest employers in the U.S.? 

It’s a good question as Anthropic heads toward its long-awaited IPO. You need not prompt your favorite generative AI model to know that investors won’t support a company’s $2 trillion valuation if its products are rapidly becoming low-margin commodities.

But hey, maybe I’m just hallucinating. Today’s tech news follows. —Andrew Nusca

Thoughts? Suggestions? Hot tip? Drop me a line.

THE BIG STORY

Nvidia-backed Reflection AI unveils its first open model, Beam. Could it be America’s best chance to compete with China?

Reflection AI CEO Misha Laskin in San Jose, California on March 18, 2026. (Photo: David Paul Morris/Bloomberg/Getty Images)
Reflection AI CEO Misha Laskin in San Jose, California on March 18, 2026. (Photo: David Paul Morris/Bloomberg/Getty Images)
David Paul Morris/Bloomberg/Getty Images

The U.S. has a new horse in the race to build the best open-source AI model—a competition China is currently dominating with models such as Moonshot’s Kimi K3 and DeepSeek’s V4.

The AI company Reflection, on Monday, unveiled its first model, called Beam. It “advances the frontier for the Western open ecosystem,” the New York company told Fortune. 

The company said that in benchmark tests it conducted, Beam achieved scores similar to those of GLM-5.2, an open model from Beijing-based Z.ai that was released back in July. That model was succeeded by GLM-5.3, which Z.ai debuted in August.

Reflection said Beam is cheaper to run than many competing models. 

“Through high-compute reinforcement learning, we were able to make Beam extremely efficient at reasoning—delivering competitive performance on coding and agentic tasks at a fraction of the token cost and inference time compute,” the company said. 

Reflection added that Beam is three to four times as efficient as rival open models from Western companies.

It is positioning Beam as a “workhorse” for enterprises, the public sector, and developers. In May, the company entered into a partnership to supply its models to the U.S. Department of Energy and the U.S. Department of War.

Reflection was founded in March 2024 by former Google DeepMind researchers Misha Laskin, now its CEO, and Ioannis Antonoglou, the startup’s president and chief technology officer. The Nvidia-backed firm has a $25 billion valuation, Laskin told CNBC in April.

The Western company most comparable to Reflection may be Thinking Machines Lab, founded by OpenAI’s former CTO Mira Murati. It unveiled its first model, Inkling, in July. Nvidia also makes an open model, called Nemotron, and OpenAI, Google, and Meta all offer open models as well. —Emily Forlini

THE BLIND BOX

“The AI industry is at an unusually elevated risk … of mistakenly thinking that it has solved the problem when really it just applied some duct tape that will fall off later.”

Read the full story here.

THE RUNDOWN

—OpenAI is piloting a “mission interview” for new job candidates.

—Tokenized U.S. stock trading? New York Stock Exchange owner ICE and the crypto exchange OKX seek SEC clearance.

—Elon Musk is a trillionaire once more after Morgan Stanley calls SpaceX stock “cheap,” sending shares up 8%.

—Amazon’s answer to data center backlash: $1 billion for community college and home energy upgrades.

—TikTok rolls out Shopping Assistant, a conversational AI agent to help users find and buy products.

—Meta and Microsoft are reportedly moving to cut their employees' use of Anthropic’s Claude.

—Norway proposes a temporary but total ban on AI glasses in certain environments to give authorities more time to “look more deeply into the matter.”

—Beijing’s Moonshot AI is worth $50 billion after reportedly closing a “final” funding round ahead of a 2027 Hong Kong IPO.

THE PARTING SHOT

A chart showing billionaires' net worth change by sector for 2026 to date. Those in the tech sector far exceed others.

Who’s making bank in the Age of Intelligence? American tech billionaires, of course. They account for most of the wealth gains—$845 billion—so far this year, Bloomberg estimates. Meanwhile the non-tech wealthy have tallied a $62 billion total loss year to date. Ouch.

This is the web version of Fortune Tech, a daily newsletter breaking down the biggest players and stories shaping the future. Sign up to get it delivered free to your inbox.
About the Author
Andrew Nusca
By Andrew NuscaEditorial Director, Brainstorm
Instagram iconLinkedIn iconTwitter icon

Andrew Nusca is the editorial director of Brainstorm, Fortune's innovation-obsessed community and event series. He also authors Fortune Tech, Fortune’s flagship tech newsletter.

See full bioRight Arrow Button Icon

Latest in Newsletters


Most Popular

Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • 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
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • TikTok icon
  • YouTube icon

    Latest in Newsletters


    Most Popular

    © 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.