Kol Tregaskes9h ago

Cursor just released Composer 2.5 and announced they're training a much larger model from scratch with xAI on Colossus 2. This could be huge.

Composer 2.5 improvements:
• Better at sustained work on long-running tasks
• More reliable with complex instructions
• Improved communication style and effort calibration
• Built on Moonshot's Kimi K2.5 with additional RL training

The bigger story is what comes next.

Show threadKol Tregaskes

They're training the next model from scratch using 10x more compute, backed by Colossus 2's million H100-equivalent capacity. Reports say they're using tens of thousands of xAI GPUs for this new model.

Cursor's harness already makes the Claude and GPT models perform better. Imagine what they could achieve with so much more compute.
https://cursor.com/blog/composer-2-5

Composer 2.5 の紹介 · Cursor

特に長いホライズンのエージェント型タスクにおいて、Composer 2 から知能とふるまいが大きく向上しました。

Cursor
11:27pmTypefully
Show threadKol Tregaskes9h ago
The post from Cursor.
https://x.com/i/status/2056415413077233983
Cursor (@cursor_ai) on X

Introducing Composer 2.5, our most powerful model yet. It's more intelligent, better at sustained work on long-running tasks, and more reliable at following complex instructions. For the next week, we’re doubling the included usage of the model.

X (formerly Twitter)