--- title: Altman and Musk take their feud to the developers description: OpenAI announced it will stop supplying AI models to Cursor, now owned by Elon Musk's SpaceX, citing concerns that SpaceX would not comply with its terms of... canonical: https://daily.dev/posts/altman-and-musk-take-their-feud-to-the-developers-hfpbf0her twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Altman and Musk take their feud to the developers | daily.dev og:description: OpenAI announced it will stop supplying AI models to Cursor, now owned by Elon Musk's SpaceX, citing concerns that SpaceX would not comply with its terms of... og:url: https://daily.dev/posts/altman-and-musk-take-their-feud-to-the-developers-hfpbf0her og:image: https://api.daily.dev/og/posts/HfPBF0HER.png og:image:alt: Altman and Musk take their feud to the developers og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Altman and Musk take their feud to the developers **[TechCentral](https://daily.dev/sources/techcentral)** · 3 min read · 0 upvotes · 0 comments ## Summary OpenAI announced it will stop supplying AI models to Cursor, now owned by Elon Musk's SpaceX, citing concerns that SpaceX would not comply with its terms of service, based on past experience with Musk's companies breaching contracts. OpenAI proposed a shutoff date of 12 November 2026. Musk dismissed the move on X, renewing accusations that Altman and OpenAI president Greg Brockman had misappropriated a nonprofit. Anthropic, meanwhile, said it would increase compute to support Claude models within Cursor. SpaceX completed its $60-billion acquisition of Anysphere, the startup behind Cursor, earlier this month, after announcing the deal in June. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Is OpenAI cutting off Cursor's access to its AI models? Yes, OpenAI announced it will stop providing its models to Cursor, the coding tool now owned by Elon Musk's SpaceX after its $60-billion acquisition of Anysphere. OpenAI proposed a shutoff date of 12 November 2026, citing an inability to trust that SpaceX would comply with its terms of service given past contract breaches by Musk's companies, including X. _Developers relying on Cursor's model options can track shifts like this affecting their AI coding stack on daily.dev._ ### Will Cursor still have access to Claude models if OpenAI cuts it off? Yes, Anthropic said it plans to increase compute to support Claude models within Cursor, according to co-founder Tom Brown. This move came shortly after OpenAI's announcement that it would stop supplying its own models to Cursor, giving the tool a path to continue functioning through an alternative model provider. _Teams weighing model provider options for coding tools like Cursor can follow these shifts on daily.dev._ ### Why is OpenAI cutting off Cursor's access to its models? OpenAI cited concerns that SpaceX, which now owns Cursor's parent company Anysphere after a $60-billion acquisition, would not comply with its terms of service, based on its experience with Elon Musk's companies breaching contracts, specifically referencing X's conduct after Musk's acquisition of the platform. The dispute is tied to a broader long-running feud between Musk and OpenAI CEO Sam Altman. _Developers navigating AI vendor disputes affecting their coding tools can follow the fallout on daily.dev._ --- Tags: [#openai](https://daily.dev/tags/openai), [#anthropic](https://daily.dev/tags/anthropic), [#spacex](https://daily.dev/tags/spacex) [View this post on daily.dev](https://daily.dev/posts/altman-and-musk-take-their-feud-to-the-developers-hfpbf0her) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Altman and Musk take their feud to the developers","url":"https://daily.dev/posts/altman-and-musk-take-their-feud-to-the-developers-hfpbf0her","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/altman-and-musk-take-their-feud-to-the-developers-hfpbf0her"},"datePublished":"2026-08-31T05:32:41.322Z","dateModified":"2026-08-31T15:45:28.039Z","description":"OpenAI announced it will stop supplying AI models to Cursor, now owned by Elon Musk's SpaceX, citing concerns that SpaceX would not comply with its terms of...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7e5d35b7b00dd3b4c1137f7ed7b517b7?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7e5d35b7b00dd3b4c1137f7ed7b517b7?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"TechCentral","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"TechCentral","logo":"https://media.daily.dev/image/upload/s--RsqLDZrL--/f_auto/v1717745297/logos/techcentral","url":"https://daily.dev/sources/techcentral"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/altman-and-musk-take-their-feud-to-the-developers-hfpbf0her","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"openai,anthropic,spacex","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"TechCentral","item":"https://daily.dev/sources/techcentral"},{"@type":"ListItem","position":3,"name":"Altman and Musk take their feud to the developers"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/altman-and-musk-take-their-feud-to-the-developers-hfpbf0her#faq","mainEntity":[{"@type":"Question","name":"Is OpenAI cutting off Cursor's access to its AI models?","acceptedAnswer":{"@type":"Answer","text":"Yes, OpenAI announced it will stop providing its models to Cursor, the coding tool now owned by Elon Musk's SpaceX after its $60-billion acquisition of Anysphere. OpenAI proposed a shutoff date of 12 November 2026, citing an inability to trust that SpaceX would comply with its terms of service given past contract breaches by Musk's companies, including X. Developers relying on Cursor's model options can track shifts like this affecting their AI coding stack on daily.dev."}},{"@type":"Question","name":"Will Cursor still have access to Claude models if OpenAI cuts it off?","acceptedAnswer":{"@type":"Answer","text":"Yes, Anthropic said it plans to increase compute to support Claude models within Cursor, according to co-founder Tom Brown. This move came shortly after OpenAI's announcement that it would stop supplying its own models to Cursor, giving the tool a path to continue functioning through an alternative model provider. Teams weighing model provider options for coding tools like Cursor can follow these shifts on daily.dev."}},{"@type":"Question","name":"Why is OpenAI cutting off Cursor's access to its models?","acceptedAnswer":{"@type":"Answer","text":"OpenAI cited concerns that SpaceX, which now owns Cursor's parent company Anysphere after a $60-billion acquisition, would not comply with its terms of service, based on its experience with Elon Musk's companies breaching contracts, specifically referencing X's conduct after Musk's acquisition of the platform. The dispute is tied to a broader long-running feud between Musk and OpenAI CEO Sam Altman. Developers navigating AI vendor disputes affecting their coding tools can follow the fallout on daily.dev."}}]} ```