Anthropic Increases Compute Support for Cursor Following OpenAI's Contract Termination

Anthropic announced it will increase compute support for its Claude models on the Cursor platform and collaborate with SpaceX, following OpenAI's decision to terminate its model supply contract with Cursor by November 12, 2026. OpenAI terminated the agreement due to SpaceX's acquisition of Cursor, citing concerns over compliance with its terms of service by Elon Musk's companies. This development highlights the intensifying competition and strategic shifts among major AI providers, as Anthropic capitalizes on OpenAI's exit to strengthen its position in the AI-assisted coding market. It also underscores how corporate acquisitions and business rivalries involving Elon Musk and OpenAI can abruptly disrupt developer toolchains. OpenAI invoked a change-of-control clause in its custom contract with Cursor after SpaceX acquired the AI coding startup for $60 billion. While OpenAI's services for Cursor are scheduled to end in late 2026, Anthropic's co-founder Tom Brown confirmed they will fully back Cursor's integration of the Claude model family.