2025-10-29

Author: danielcorin

src/content/logs/2025/10/29.mdx

@@ -0,0 +1,22 @@
+---
+date: '2025-10-29T21:02:08Z'
+title: '2025-10-29'
+draft: false
+tags: ['cursor', 'composer']
+---
+
+Cursor [released](https://cursor.com/blog/composer) their "Composer" model today.
+I believe the name is a hat tip to the original name of their agent/multi-file editing mode.
+
+Per the post
+
+> Composer is a mixture-of-experts (MoE) language model supporting long-context generation and understanding. It is specialized for software engineering through reinforcement learning (RL) in a diverse range of development environments.
+
+I've long been of the opinion that the only way Cursor was going to have staying power as a company was to train their own model.
+If they hadn't, my thesis was that they would continue to give all their margin away to the lab(s) with the best coding model(s).
+
+Cursor has a ton of code data.
+They also see users' preferences for models.
+
+By training their own model, maybe they can better control their own destiny and not be at the mercy of the labs and their API pricing.
+The open question is whether this model is good enough to convince their customers to switch to it.