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Alphabet Closes at Record High After Google Rolls Out Gemini 3

Analysts pointed to strong early tests versus OpenAI as evidence of renewed competitive momentum.

Overview

  • Alphabet shares ended at $292.82, up about 3% after the Gemini 3 launch, with upbeat notes from William Blair and D.A. Davidson.
  • Third‑party benchmarks from Artificial Analysis report Gemini 3 Pro outperforming OpenAI’s GPT 5.1 on general intelligence and coding, though usage costs are higher.
  • Gemini’s monthly active users reached 650 million, rising from 450 million in July and narrowing the gap with ChatGPT.
  • Google introduced Gemini Agent for task automation and launched Google Antigravity, an AI‑powered coding platform available to AI Ultra subscribers.
  • Google DeepMind announced a new research lab in Singapore to collaborate across Asia‑Pacific on improving Gemini and applying the models to Google products and Cloud customers.