Google has released a preview of Gemini 3.1 Pro, an upgraded version of its core artificial intelligence model, and says a full public launch will follow soon.
The company made the announcement on Thursday, describing the new system as a big step forward from Gemini 3, which it introduced in November 2025. It is already rolling out the preview across consumer, developer and enterprise products.
In a statement, Google said: “Last week, we released a major update to Gemini 3 Deep Think to solve modern challenges across science, research and engineering.
“Today, we’re releasing the upgraded core intelligence that makes those breakthroughs possible: Gemini 3.1 Pro. We are shipping 3.1 Pro across our consumer and developer products to bring this progress in intelligence to your everyday applications.”
Developers can now access Gemini 3.1 Pro in preview through the Gemini API in Google AI Studio, Gemini CLI, Google Antigravity and Android Studio.
Enterprise customers can use it in Vertex AI and Gemini Enterprise. Consumers are getting it through the Gemini app and NotebookLM.
Google says the new model improves core reasoning. It reports that Gemini 3.1 Pro scored 77.1 per cent on ARC-AGI-2, a benchmark designed to test how well a system can solve entirely new logic patterns. According to the company, that score is more than double the reasoning performance of Gemini 3 Pro.
On another benchmark known as Humanity’s Last Exam, Google says Gemini 3.1 Pro outperformed Anthropic’s Claude Opus 4.6 and OpenAI’s GPT-5.2. Independent testing platform APEX-Agents also ranked the model first for professional task performance.
Brendan Foody, chief executive of Mercor, which runs the APEX system, wrote on social media: “Gemini 3.1 Pro is now at the top of the APEX-Agents leaderboard,” adding that the model’s results show “how quickly agents are improving at real knowledge work.”
Google describes Gemini 3.1 Pro as a stronger base for complex problem-solving. It says the system can support tasks that require detailed reasoning, data synthesis and multi-step workflows.
The company appears to be focusing on tools that go beyond simple text generation and can handle layered instructions.
The update comes just three months after the release of Gemini 3. In that same period, competitors including OpenAI and Anthropic have also introduced new models, intensifying competition among large technology firms.
Google DeepMind has published a model card for Gemini 3.1 Pro outlining its intended uses, limits and safety measures.
The company says the model is natively multimodal, meaning it can process text, images and other forms of input. While that expands its use cases, it also leads to safety and content moderation questions.
For now, Google says the preview will allow it to test improvements further before a general release. Higher usage limits are being introduced for users on the Google AI Pro and Ultra plans, while NotebookLM access is limited to those subscribers.
The company ended its announcement with a brief note to users: “We can’t wait to see what you build and discover with it.”
