In November, Google introduced Gemini 3 Pro in preview, with Gemini 3 Flash following a month later. Google today announced Gemini 3.1 Pro “for tasks where a simple answer isn’t enough.”
This .1 increment is a first for Google, with the past two generations seeing .5 as the mid-year model update. (2.5 Pro was first announced in March and saw further updates in May for I/O.)
Google says Gemini 3.1 Pro “represents a step forward in core reasoning.” The “upgraded core intelligence” that debuted last week with Gemini 3 Deep Think is now available in Gemini 3.1 Pro for more users.
This model achieves an ARC-AGI-2 score of 77.1%, or “more than double the reasoning performance of 3 Pro.”
This “advanced reasoning” translates to practical applications like when “you’re looking for a clear, visual explanation of a complex topic, a way to synthesize data into a single view, or bringing a creative project to life.”
3.1 Pro is designed for tasks where a simple answer isn’t enough, taking advanced reasoning and making it useful for your hardest challenges.
Gemini 3.1 Pro is rolling out to the Gemini app today, as well as NotebookLM for Google AI Pro and Ultra subscribers.
It’s also available in the Gemini API via Google AI Studio, Antigravity, Vertex AI, Gemini Enterprise, Gemini CLI, and Android Studio for developers.
Gemini 3.1 Pro is launching in preview to “validate these updates and continue to make further advancements in areas such as ambitious agentic workflows before we make it generally available soon.”
More on Gemini:
- Gemini app rolling out music generation for all with Lyria 3
- Gemini app makes sharing more prominent in chats
- Gemini 3 Deep Think gets ‘major upgrade’ aimed at practical applications
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