Composer 2.5

Release Summary

Cursor's updated frontier coding model for Composer, trained with scaled RL, harder synthetic tasks, and targeted textual feedback. Strong gains over Composer 2 on Terminal-Bench 2.0 (69.3%), SWE-bench Multilingual (79.8%), and CursorBench v3.1 harder tasks (63.2%). Same standard pricing as Composer 2 ($0.50/M input, $2.50/M output); a faster default variant costs more ($3.00/M input, $15.00/M output). Double usage for the first week after launch.

Timeline