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Advanced Micro Devices (AMD) will sell Anthropic tens of billions of dollars’ worth of AI servers and invest as much as $5bn in the Claude maker, in a deal that would strengthen its foothold in a market dominated by rival Nvidia.

The announcement on Wednesday marks the latest so-called circular deal in the AI industry, where chipmakers invest in AI firms that are among their biggest customers. Nvidia has been in talks to invest $30bn in ChatGPT creator OpenAI.

Buying AMD chips would secure Anthropic much-needed AI computing capacity. The startup has emerged as one of the leaders in Silicon Valley’s artificial intelligence race, thanks to strong adoption of its enterprise tools such as Claude Code.

Anthropic will buy up to two gigawatts of AMD’s latest-generation Instinct MI450 chips, starting in the first half of 2027, the companies said. AMD’s investment in Anthropic will be tied achieving certain deployment milestones.