CursorBench v3.1

Data Points: Cursor Composer 2.5, Gemini 3.5 Flash, Antigravity 2.0, Omni Flash, AI Search, and Corti Symphony

This edition covers several notable AI product and model releases: Cursor shipped Composer 2.5 (built on Kimi K2.5) scoring 79.8% on SWE-Bench Multilingual at significantly lower cost than frontier competitors; Google released Gemini 3.5 Flash with claimed 4x speed advantage and launched Antigravity 2.0 as an agent-first desktop app replacing its IDE; Google also introduced Gemini Omni Flash for multimodal video generation and overhauled its search interface with Gemini 3.5. Additionally, Copenhagen-based Corti launched Symphony for Speech-to-Text achieving 1.4% word error rate on medical terminology versus 17-19% for generalist models.