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Anthropic Is Valued at $380 Billion in New Funding Round

The artificial intelligence start-up raised another $30 billion, and its valuation more than doubled since its last funding round in September.

© Karsten Moran for The New York Times

Anthropic was founded by Dario Amodei, right, and his sister, Daniela Amodei, who had parted ways with OpenAI.
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A Social Network for A.I. Bots Only. No Humans Allowed.

A new website called Moltbook has become the talk of Silicon Valley and a Rorschach test for belief in the state of artificial intelligence.

© Jason Henry for The New York Times

Just two days after the social network Moltbook was launched, more than 10,000 “Moltbots” were chatting with one another on the site.
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A Social Network for A.I. Bots Only. No Humans Allowed.

A new website called Moltbook has become the talk of Silicon Valley and a Rorschach test for belief in the state of artificial intelligence.

© Jason Henry for The New York Times

Just two days after the social network Moltbook was launched, more than 10,000 “Moltbots” were chatting with each other on the site.
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Amazon and Google Eat Into Nvidia’s A.I. Chip Supremacy

The rivals made billions of dollars in the business over the past year, showing other companies that Nvidia isn’t the only game in town.

© Christie Hemm Klok for The New York Times

Google’s chips for artificial intelligence are increasingly being used by companies other than Google.
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Silicon Valley Wants to Build A.I. That Can Improve A.I. on Its Own

Ricursive Intelligence, founded by two former Google researchers and valued at $4 billion, is among several efforts to automate the creation of artificial intelligence.

© Cayce Clifford for The New York Times

Anna Goldie and Azalia Mirhoseini, the founders of Ricursive Intelligence, at the start-up’s offices in Palo Alto, Calif.
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The Drama at Thinking Machines, a New A.I. Start-Up, Is Riveting Silicon Valley

Defections, secret conversations, deal talks that fizzled and a battle for control: The turmoil at Thinking Machines Lab is the artificial intelligence industry’s latest drama.

© Jim Wilson/The New York Times

Ms. Murati with Mr. Altman and two other OpenAI colleagues in 2023. She co-founded Thinking Labs a year ago.
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An A.I. Start-Up Says It Wants to Empower Workers, Not Replace Them

Founded by researchers from Anthropic, Google and xAI, the new company, Humans&, is already valued at $4.48 billion.

© Christie Hemm Klok for The New York Times

Founders of the A.I. start-up Humans& aims to focus on how A.I. can support human workers rather than replace them. From left, Georges Harik, Andi Peng, Noah Goodman, Eric Zelikman and Yuchen He.
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OpenAI Starts Testing Ads in ChatGPT

The company said on Friday that it would start serving ads in the free version of its chatbot over the next several weeks.

© Andres Kudacki for The New York Times

Making money from the free version of OpenAI’s chatbot has been a challenge for the company.
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Can A.I. Generate New Ideas?

Systems like OpenAI’s GPT-5 are accelerating research in math, biology and chemistry. But there is a debate over whether it can do that work on its own.

© Agnes Jonas

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