Cursor Deploys Real-Time RL to Self-Improve Composer 2 Every 5 Hours in Production
r/singularity / Cursor Blog·high signal
Cursor announced it is continuously improving Composer 2 through real-time reinforcement learning from production traffic, deploying new model checkpoints as frequently as every five hours. The system uses self-summarization to learn from coding trajectories longer than the model's context window, enabling Composer 2 to handle tasks requiring hundreds of sequential actions. This is the first public example of a coding AI tool running continuous RL in production at this cadence — a significant signal for the agentic IDE market. Reddit: r/singularity (252↑, 72 comments).