Simon Willison 博客T2·Models
78 pts
Google has opened Gemini 4 Carbon, previously limited to a subset of cyber defenders, to all users, calling it its best Gemini yet. Launch pricing is $2 per million input and $10 per million output tokens, matching GPT-6.1 Sol and Claude Sonnet 5.5, but doubles to $4/$20 on December 1. The model exposes low, medium and high thinking efforts, defaulting to medium.