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An OpenAI AI model placed second in the AtCoder Heuristics World Finals, an international competition for solving tough optimization problems. The model ran completely on its own for ten hours, competing under the same rules as human participants. After a strong start, it briefly lost the lead before catching up again, only to be overtaken at the last moment by veteran competitor FakePsyho.

OpenAI says this marks the first time an AI has cracked the top three in a major programming and math competition. OpenAI hasn't revealed which specific model it used. The competition itself was sponsored by the company.

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Perplexity's valuation has jumped to $18 billion, up from $14 billion just two months ago, according to the Financial Times. New investors paid the higher price after its latest funding round. The company’s annual revenue grew from $35 million in August 2023 to $150 million.

Investors include Nvidia, SoftBank’s Vision Fund 2, venture firms New Enterprise Associates and IVP, Amazon founder Jeff Bezos, and Meta’s Yann LeCun. Perplexity offers an AI search engine and a paid browser called "Comet," which can handle tasks like shopping, summarizing social media, and sending emails. Apple is reportedly interested in acquiring the company.

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Anthropic has reportedly made it harder to use its Claude Code AI tool, with Max plan subscribers ($200 per month) now running into usage caps much sooner than before. Many users on GitHub say they are suddenly getting blocked after just a handful of requests. There has been no official announcement about the change. When asked by TechCrunch, Anthropic only said they're working on a solution for slow response times. The lack of clear communication has left many paying users frustrated, especially since the variable limit structure - which shifts depending on server load - is already confusing.

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OpenAI will start using Google’s cloud infrastructure for ChatGPT and its API in several countries, including the US, Japan, the Netherlands, Norway, and the UK. Microsoft, CoreWeave, and Oracle remain key partners for providing computing power. The move comes as demand for GPU capacity continues to grow, a need OpenAI had previously met mostly through Microsoft. That exclusive partnership loosened in January. Google now adds a major customer to its cloud division, which has trailed behind Amazon and Microsoft. The announcement follows earlier deals with Oracle and CoreWeave to expand OpenAI’s infrastructure.

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