GPT 5.5 Tops Android AI Dev, Gemini 3.1 Pro Cheaper

GPT 5.5 is now the top-ranked AI model for Android app development. It beat out GPT 5.4 and Gemini 3.1 Pro by just under 2%. Here's the thing: while GPT 5.5 scores 74, it costs over twice as much as Gemini 3.1 Pro, which scored 72.4. Google's updated "Android Bench" rankings now include average latency, total tokens used, and the average cost for each model. For example, GPT 5.5 costs $133.9 per benchmark run, while Gemini 3.1 Pro Preview costs $49.0. What's interesting is that GLM 5.1 is a new model on the list, scoring 59.7. These updates help developers weigh performance against cost when choosing an AI model for their projects.