Composer 1.5 improves upon its predecessor by enhancing coding capabilities through scaled reinforcement learning. It balances speed and intelligence, using thinking tokens for complex tasks and self-summarization for extended contexts. The model shows significant performance gains, especially on challenging coding problems.

Cursor has launched Composer, a coding model that speeds up code generation and editing for developers, completing tasks in under 30 seconds. The new multi-agent interface allows teams to manage complex projects more effectively by enabling multiple agents to work in parallel. This update aims to enhance workflows by improving code review and automated testing processes.