Google Launches Gemini 3.1 Pro With Improved Reasoning and Multi-Step Problem Solving

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Google has announced Gemini 3.1 Pro, a new version of its flagship artificial intelligence model designed to improve complex reasoning and multi-step problem solving across consumer and developer platforms.

The release follows closely after Google introduced Lyria 3, its AI music generation model, and continues the company’s accelerated rollout of Gemini updates across its AI ecosystem.

According to Google, Gemini 3.1 Pro integrates reasoning advances originally developed for its experimental Deep Think mode and applies them to broader real-world tasks inside Gemini services.

Benchmark Results Show Major Reasoning Gains

Google says Gemini 3.1 Pro achieved 77.1% accuracy on the ARC-AGI-2 benchmark, a test designed to evaluate whether AI systems can solve unfamiliar logic problems rather than repeat learned patterns.

The company claims this score represents more than double the performance of the previous Gemini 3 Pro model on the same benchmark.

ARC-AGI-2 focuses on abstract reasoning tasks that require understanding intent and adapting to new problems, capabilities often considered closer to general intelligence than traditional text prediction.

Coverage from Ars Technica notes that benchmark improvements are increasingly becoming a key competitive metric among AI developers as companies shift toward reasoning-focused systems instead of conversational chatbots.

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