Gemini 3.1 Pro

Gemini 3.1 Pro — explained in more detail

Gemini 3.1 Pro was released as a preview on February 19, 2026 and is Google’s current flagship. This point release within the Gemini 3 family targets complex problem-solving, long-horizon agentic workflows, and multimodal code generation. On ARC-AGI-2 it scores 77.1% — more than double its predecessor Gemini 3 Pro.

Specifications

• Context window: 1 million input tokens, 64K (65,536) output tokens — four times the output capacity of Gemini 3 Pro.
• Modalities: text, image, audio, video as input; text as output.
• API model name: gemini-3.1-pro-preview.
• Pricing: $2.00 per 1M input tokens, $12.00 per 1M output tokens — above the median for comparable top-tier models.

Availability

Immediately available in Gemini API (AI Studio, Gemini CLI), Google Antigravity, Android Studio, Vertex AI, Gemini Enterprise, plus the Gemini app and NotebookLM for Pro/Ultra users. Top-tier competitors: Claude Opus 4.7, GPT-5.5.

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