# Many had expected 3.5 Pro to come out at I/O.

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

## Key points

- Google's Gemini 3.5 Pro will not be released at I/O and is delayed until next month.
- CEO Sundar Pichai confirmed the delay but did not provide a specific reason for it.
- Gemini 3.5 Pro is already showing significant improvements over previous Gemini models.
- The delay contradicts industry expectations for an immediate I/O launch of Gemini 3.5 Pro.

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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