Anthropic will not follow OpenAI in cutting off Cursor over SpaceX deal
Tom Brown, co-founder of Anthropic, has announced that the company will continue to supply its Claude models to Cursor while adding more compute behind them.
He made the statement within 24 hours of OpenAI informing SpaceX (NASDAQ: SPCX) of its decision to cut Cursor off, in response to Elon Musk’s $60 billion purchase of Cursor’s parent company.
Two AI labs, two different responses
OpenAI announced plans to stop supplying its models to Cursor on August 28, with hopes to end the contractual relationship by November 12, 2026. The company claims it is doing this reluctantly, but Musk’s purchase of the company has left it without a choice.
The Altman-led firm claimed Musk-owned companies have a habit of violating contracts, citing Twitter’s violations of terms, which Musk himself admitted to under oath.
Anthropic did the exact opposite, saying “Cursor has been a trusted partner of Anthropic since Sonnet 3.5,” according to Brown. He went on to add that Anthropic would “continue to increase compute to support Claude models in Cursor.”
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