Gemini 3.1 Pro Preview by Google ranks 23rd of 354 ranked models on the Noometry Index as of October 2026, with a score of 56.7. Its strongest category is knowledge, where it ranks 3rd. API pricing starts at $2 per million input tokens and $12 per million output tokens, with a 1.05M-token context window.
Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.
Gemini 3.1 Pro Preview by Google ranks 23rd of 354 ranked models on the Noometry Index as of October 2026, with a score of 56.7. Its strongest category is knowledge, where it ranks 3rd. API pricing starts at $2 per million input tokens and $12 per million output tokens, with a 1.05M-token context window.
How much does Gemini 3.1 Pro Preview cost?
Gemini 3.1 Pro Preview costs $2 per million input tokens and $12 per million output tokens on Google's own API, with cached input at $0.20.
What is Gemini 3.1 Pro Preview's context window?
Gemini 3.1 Pro Preview accepts up to 1.05M tokens of input and can write up to 66K tokens in one response.
Is Gemini 3.1 Pro Preview open source?
No. Gemini 3.1 Pro Preview is proprietary and available only through Google's API and partner platforms.
What are Gemini 3.1 Pro Preview's strengths and weaknesses?
Relative to other ranked models, Gemini 3.1 Pro Preview places best in knowledge, reasoning, multilingual and lowest in multimodal, coding, agentic & tool use.
What is Gemini 3.1 Pro Preview best at?
Its best category is knowledge, where it ranks 3rd on Noometry.