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Gemini 3.1 Pro Preview

Rank #44 google

google/gemini-3.1-pro-preview-20260219

Usage data date 2026-07-26 · updated daily

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Usage and specs

Daily rank#44
Daily tokens193.3B
Daily requests13.6M
Daily change +6.4%
Context window1M
Released

What is Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation of the Gemini 3 series, it combines high-precision reasoning across text, image, video, audio, and code with a 1M-token context window. Reasoning Details must be preserved when using multi-turn tool calling, see our docs here: https://openrouter.ai/docs/use-cases/reasoning-tokens#preserving-reasoning. The 3.1 update introduces measurable gains in SWE benchmarks and real-world coding environments, along with stronger autonomous task execution in structured domains such as finance and spreadsheet-based workflows. Designed for advanced development and agentic systems, Gemini 3.1 Pro Preview improves long-horizon stability and tool orchestration while increasing token efficiency. It introduces a new medium thinking level to better balance cost, speed, and performance. The model excels in agentic coding, structured planning, multimodal analysis, and workflow automation, making it well-suited for autonomous agents, financial modeling, spreadsheet automation, and high-context enterprise tasks.

Gemini 3.1 Pro Preview capabilities

Input: Audio、File、Image、Text、Video   Output: Text

Reasoning output Reasoning Reasoning effort JSON output Structured outputs Tool choice Tool use

Gemini 3.1 Pro Preview API pricing

Input · per 1M tokens$2.00
Output · per 1M tokens$12.00

List prices in USD; see each provider’s site for current terms.

Tools built on this model

Google Gemini Most useful for people already working in Google services, with plan limits and data permissions worth checking first. Google AI Best for self-taught learners and developers who want to connect AI study with hands-on practice; not for learners needing systematic Chinese-language instruction. Imagen Best for researchers, engineers, and technology decision-makers tracking text-to-image progress; not for casual users who want to generate images right away. Gemini Best for users embedded in the Google ecosystem who need multimodal and automation power; not suitable for users in restricted regions or those who avoid Google services. PaLM 2 Suited to AI developers, researchers, and enterprise teams in the Google ecosystem; not for everyday users seeking a ready-made consumer chatbot.