Google unveils Gemini 3.1 Pro with major reasoning boost

Gemini 3.1 Pro

Google has announced Gemini 3.1 Pro, the latest upgrade to its flagship AI model family, designed to tackle complex reasoning, multi-step problem solving and advanced synthesis tasks. The new model builds on the Gemini 3 series with significant improvements in logic performance and multimodal ability.

What’s New in Gemini 3.1 Pro

Gemini 3.1 Pro is a focused refinement of Gemini 3 Pro, aimed at boosting core reasoning and deep problem solving rather than just chat-style responses. On the ARC-AGI-2 benchmark, a test of abstract logic and novel reasoning, the model achieved 77.1 %, more than double the score of the previous 3 Pro generation. This places it significantly ahead in tasks requiring planning, logic, and synthesis.

The model also shows strong results on other benchmarks, including scientific knowledge and complex coding tasks, demonstrating its versatility across domains that require deeper thinking rather than surface-level answers.

Capabilities & Applications

Beyond raw scores, Gemini 3.1 Pro brings several practical enhancements:

  • Advanced reasoning: Designed for situations where a simple answer isn’t enough  such as explaining complex concepts or solving multi-step problems.
  • Multimodal understanding: Handles text, images, audio, and other input formats within large context windows, enabling richer interactions and outputs.
  • Creative outputs: Google showcased capabilities like code-based SVG animation generation from text prompts and building complex system visualizations, illustrating how it can go beyond text to interactive and scalable content.

Availability

Gemini 3.1 Pro is rolling out in preview today:

  • Developers: Available via Gemini API and developer platforms like Google AI Studio, Gemini CLI, Antigravity, and Android Studio.
  • Enterprise: Accessible through Vertex AI and Gemini Enterprise for business use cases.
  • Consumers: Available in the Gemini app and NotebookLM, with higher usage limits for Google AI Pro and Ultra subscribers.

Google is using this preview phase to refine performance, especially for advanced workflows involving autonomous agents and creative tasks, before broader general availability. 

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