Composer 2

Mar 23, 2026
Composer 2
GPT-5.4
claude opus 4.6

Composer 2: What is new and Compares with Claude Opus 4.6 & GPT-5.4

Composer 2 is a next-generation AI coding model developed by Cursor, designed specifically for software engineering tasks. It delivers frontier-level coding performance at up to 10× lower cost than competitors like Claude Opus 4.6 and significantly cheaper than GPT-5.4, thanks to a code-only training approach, reinforcement learning optimization, and efficient model architecture.