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Gemini 3.1 Pro
Google Gemini · Gemini 3
Google Gemini released Gemini 3.1 Pro on February 19, 2026.
Gemini 3.1 Pro is the Google model released in preview on February 19, 2026 as the latest iteration in the Gemini 3 series, designed for tasks where a simple answer isn't enough. Google highlighted code-based animation (website-ready animated SVGs from a prompt), complex system synthesis, interactive 3D design and creative coding. It is available in the Gemini app, NotebookLM, the Gemini API in Google AI Studio, Gemini CLI, Google Antigravity, Android Studio, Vertex AI and Gemini Enterprise. A separate gemini-3.1-pro-preview-customtools endpoint is better at prioritising custom tools. In March 2026 the Gemini 3 Pro Preview was shut down and its id now points to 3.1 Pro.
Gemini 3.1 Pro at a glance
- Released
- API model id
gemini-3.1-pro-previewgemini-3.1-pro-preview-customtools- Available on
- Gemini appNotebookLMGemini APIVertex AIGoogle Antigravity
- Announcement
- blog.google
What changed
Google's headline result is a verified 77.1% on ARC-AGI-2, which it says is more than double the reasoning performance of Gemini 3 Pro.
It shipped as a preview, with general availability promised after further validation.
New to model names and version numbers? Read how AI labs version their models.
Gemini 3.1 Pro release timeline
The launch and every later Google Gemini release that mentions Gemini 3.1 Pro, oldest first.
- Gemini 3.1 Pro
Google launched Gemini 3.1 Pro, its upgraded model for more complex reasoning and agentic workflows across the Gemini app, API, Vertex AI, and NotebookLM.
Source: Google Blog
Gemini 3.1 Pro FAQ
When was Gemini 3.1 Pro released?
Google Gemini released Gemini 3.1 Pro on February 19, 2026. The launch entry below links to the official announcement.
Where is Gemini 3.1 Pro available?
Gemini 3.1 Pro is available on Gemini app, NotebookLM, Gemini API, Vertex AI and Google Antigravity. Later availability changes are listed under follow-up releases on this page.
What is the Gemini 3.1 Pro API model id?
Use gemini-3.1-pro-preview and gemini-3.1-pro-preview-customtools in Google Gemini's API.
Other Google Gemini models
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