Cursor (Anysphere)
Anysphere makes Cursor, a software development platform with its own coding models. SpaceX completed its acquisition of Cursor in August 2026.
Company & leadership
- CEO
- Michael Truell
- Legal company
- Anysphere, Inc.
Founders
- Michael Truell, Aman Sanger, Arvid Lunnemark and Sualeh Asif
The founders chose software development
Cursor’s MIT co-founders first explored an AI email client and a computer-aided design tool. Investor a16z describes their later decision to build the programming tool they wanted to use themselves. The product combined code completion, a conversational sidebar and model choice.
From completion models to coding agents
Cursor’s custom Tab models preceded Composer. Composer 1.5 added adaptive reasoning and learned summarization in February 2026. Composer 2 introduced continued pretraining, followed by reinforcement learning for longer coding tasks.
SpaceX completed the acquisition
The August 2026 announcement confirmed completion of the acquisition process that began with an April model-training partnership. Cursor described access to SpaceX’s computing resources and joint model work, including Grok 4.6.
Models covered here
Practical guidance. These records cover the currently documented Composer 2.5 tiers, Composer 1, Tab and the custom embedding model. Older Composer 1.5 and 2 documentation routes now lead to 2.5. Grok models are listed under xAI; shared ownership does not erase their release history.