Researchers with genuinely hard technical problems may value it, but it sits behind AI Ultra at £189.99 a month, and API access is by application.
Kenning's take
What it does
Deep Think is a reasoning mode in Gemini aimed at hard science, research and engineering problems. Google gave it a major upgrade in February 2026 and now describes it as built on Gemini 3.1 Pro. It is in the Gemini app for Google AI Ultra subscribers, with API access for selected researchers and companies.
- Specialised long reasoning mode
- Built on Gemini 3.1 Pro
- Aimed at chemistry, physics and maths problems
- Early API access for select researchers
Who it suits. Researchers, engineers and students tackling hard technical problems who pay for AI Ultra.
Key facts
- Category
- AI models
- Part of
- Google Gemini
- Made by
- Based in
- United States
- Released
- 12 February 2026
- How to get it
- Gemini app for Google AI Ultra subscribers; Gemini API early access by application
- Works on
- Web, Android, iOS, API
Pricing
| Plan | Price | Billed |
|---|---|---|
| Google AI Ultra | £189.99 | month |
FAQ
How do I get Gemini Deep Think?
It is in the Gemini app for Google AI Ultra subscribers; API access is by early-access request.
When was Deep Think upgraded?
Google released a major upgrade on 12 February 2026; the mode was first announced alongside Gemini 3 in November 2025.
Facts from the maker's own pages and the sources listed. Checked 2026-10-11.
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