Introducing Composer 2

Composer 2, now available in Cursor, is a cutting-edge coding model that offers significant improvements over its predecessors, achieving higher scores on benchmarks such as Terminal-Bench 2.0 and SWE-bench Multilingual. Priced at an economical $0.50 per million input tokens and $2.50 per million output tokens, it provides an optimal balance of intelligence and cost. The advancements in Composer 2 stem from its first continued pretraining run, which enhances its base for scaling reinforcement learning, allowing it to handle complex tasks that require numerous actions. Additionally, a faster variant is available at a higher price, making rapid processing the default option. The model's performance was validated using the Harbor evaluation framework, and its scores were compared with those of other models using standardized benchmarks. Composer 2 can be explored further in Cursor or the early alpha of a new interface, with detailed documentation accessible for users.

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