Gemini 3 Deep Think is an advanced reasoning mode within the Gemini app that explores various solutions and dedicates additional time to solving complex problems. Those with an Ultra subscription can activate this feature in the model selector, and verify results through a step‑by‑step reasoning process for tasks such as mathematics, coding, planning, and technical analysis.

What is Gemini 3 Deep Think?

Deep Think is an innovative mode in the Gemini app tailored for complex, multi‑step reasoning. It evaluates multiple hypotheses concurrently and refines them before delivering an answer, making it ideal for advanced mathematics, coding challenges, scientific analysis, and intricate planning tasks.

Availability note: Access currently requires the Google AI Ultra plan. Some features and languages might be restricted depending on the region and availability, which can change over time.

Benefits at a glance

• Enhanced problem‑solving: Manages multi‑step logic with iterative, parallel reasoning.

• Improved transparency: Provides clearer intermediate steps or structured outputs for review.

• Designed for power users: Optimized for critical tasks; standard queries might not require Deep Think.

How to enable Deep Think in the Gemini app

1. Open Gemini (web or mobile) and sign in.

2. Select a Gemini 3 model in the model dropdown (e.g., “3 Pro”).

3. Enable Deep Think from the prompt bar or where tools/controls are available.

4. Set clear expectations in your prompt: define the goal, constraints, and desired format (e.g., “Display numbered steps followed by a final answer”).

5. Verify outputs: have Deep Think explain its process or provide cross‑checks you can perform.

Tip: For complex problems, supply examples, test situations, or constraints (such as time limits and assumptions) to navigate the reasoning path.

Practical examples

• Advanced mathematics: Request a proof outline or a step‑by‑step derivation, then ask for a concise final result.

• Coding & debugging: Submit failing tests and request a minimal fix along with an explanation of its effectiveness.

• Research & analysis: Compare various scenarios; require a table detailing assumptions, risks, and recommendations.

• Planning: Develop a plan with multiple constraints (budget, time, resources) and request options for trade‑offs.

Measuring value

Monitor: task success rate, time-to-solution for complex queries, and how frequently results are accepted without revisions. Over time, anticipate fewer iterative prompts for intricate problems.

Next Steps

Need assistance determining when to opt for Deep Think versus standard models? Contact Generation Digital for a customized workflow and governance setup.

FAQs

What is Gemini 3 Deep Think?
An exploratory reasoning mode that invests extra time and investigates multiple solutions before responding.

Who can access it?
Subscribers to Google AI Ultra. Regional and language availability may differ.

How does it improve reasoning?
By conducting iterative, parallel reasoning steps and validating intermediate hypotheses before producing an answer.

Is it always the better choice than standard Gemini?
No. It excels in complex, high‑stakes tasks. For everyday inquiries, standard models are quicker and more than sufficient.

Where can it be activated?
Within the Gemini app's model selector and tools/controls when a Gemini 3 model is chosen.