Gemini 3 Pro is here! Crushing GPT-5 and Claude? Throw away Cursor and embrace Antigravity?

Recently, Google’s Gemini 3 Pro, released on November 18, 2025, has sent shockwaves through the AI community. The model delivers massive upgrades in reasoning, coding, and multimodal capabilities and is being hailed as a “generational technological gap” product that directly targets GPT-5 and Claude 4.5. At the same time, Google’s new AI-native IDE tool Antigravity is taking a direct shot at existing development tools like Cursor and VSCode. Does Gemini 3 Pro really crush GPT-5 and Claude? Is it time to throw away your Cursor and embrace Antigravity?