# 許多人原本預期 3.5 Pro 將在 I/O 發表，執行長 Sundar Pichai 未說明聊天機器人為何會延後推出。

*genai · news · 2026-05-19 · Business Insider*

## Key points

- Google 的 Gemini 3.5 Pro 不會在 I/O 發布，將延後至下個月推出。
- 執行長 Sundar Pichai 確認延遲，但未提供具體原因。
- Gemini 3.5 Pro 已展現出相較先前 Gemini 型號的顯著改進。
- 此延遲與業界預期 Gemini 3.5 Pro 將於 I/O 立即發布的看法相悖。

Gemini 3.5 Pro isn't coming out yet, disappointing the crowd at Google's packed flagship developer conference I/O on Tuesday. "I know you can't wait to get your hands on it," CEO Sundar Pichai said onstage. "Give us until next month to get it to you." Many had expected 3.5 Pro to come out at I/O, since it's the most powerful model in the works from the tech giant. Pichai didn't explain why the chatbot will launch later than expected, although he did say that it's already "showing great improvements" compared to previous versions. Google didn't immediately respond to a request for comment. The industry is closely watching the release of 3.5 Pro, especially after Google's last big AI model, Gemini 3, outperformed expectations. Google's stock has been on a tear lately as its AI models and chips perform strongly.

**Companies:** Google
**Countries:** United States

[Read the full story on Business Insider](https://www.businessinsider.com/google-io-2026-gemini-3-5-pro-2026-5)

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