🚨 Composer 3 is reportedly being tested inside Cursor under the codename “Vega”
LuminaXspace

The leaked checkpoint appears to include:
• Fast mode • Medium reasoning • High reasoning • XHigh reasoning • Six internal model variants • A public release possibly coming very soon
Its coding and agent performance should sit somewhere between GPT-5.4 and GPT-5.5, and remember that composer models are ridiculously cheap and incredibly fast.
With how good Composer 2.5 was, are you looking forward to Composer 3?

