On October 1, Alphabet rose 3.66% in after-hours trading, trading at $353.985/share, with turnover of $516 million. The rally was driven by two converging catalysts: the imminent launch of Google's flagship AI model Gemini 4 Pro and the signing of a White House AI self-regulatory agreement.

On the product front, Google DeepMind confirmed that Gemini 4 is currently in early post-training stages. Leaked benchmarks reportedly show Gemini 4 Pro outperforming both GPT-6 Astra and Claude Fable 5.1 across coding, agentic tasks, and reasoning, with aggressive input pricing of just $2.25 per million tokens — significantly undercutting rival flagship models.

On the policy front, the White House hosted a summit where President Trump and CEOs from Google, Anthropic, Meta, NVIDIA, OpenAI, and xAI signed a voluntary AI safety agreement titled the White House Super Intelligence Agreement. The pact establishes a four-tier framework of internal controls, dedicated oversight teams, independent external audits, and board-level committees — signaling a collaborative rather than adversarial regulatory posture that eased market concerns over heavy-handed intervention.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)