Updated Gemini 3.1 flagship model for complex reasoning, coding, and long-context multimodal work. Improves on Gemini 2.5 Pro with stronger state-of-the-art performance and broad availability across the Gemini API and Vertex AI.
Improves on Gemini 2.5 Pro with stronger state-of-the-art performance and broad availability across the Gemini API and Vertex AI.
65.5
Quality Score
1278
Arena ELO
Undisclosed
Parameters
1M
Context
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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711.0K
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Feb 2026
Released
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
gemini-3.1-pro (openrouter) - GAIA
GAIA score 47.2 from Auto-Use
View sourceGemini 3.1 Pro: A smarter model for your most complex tasks
This new model shows improved reasoning, scoring significantly higher on complex problem-solving benchmarks. Google is releasing 3.1 Pro in preview to validate updates and advance agentic workflows further. Starting today, 3.1 Pro is rolling out: For developers in preview via the Gemini API in Google AI Studio , Gemini CLI , our agentic development platform Google Antigravity and Android Studio For enterprises in Vertex AI and Gemini Enterprise For consumers via the Gemini ap
View source1278
ELO Score
1271 - 1285
95% Confidence
+/-7 points
23.6K
Battles
Jun 6, 2026
Last Updated