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Google’s latest iteration of its AI model, Gemini 2.5 Deep Think, is making waves. While it didn’t snag the exact gold-medal-winning capabilities seen at the International Mathematical Olympiad (IMO), this “bronze” version, as Google labels it, still packs a punch.
Unveiled via the Gemini mobile app, Deep Think is accessible to those subscribed to Google’s premium AI plan, AI Ultra, costing a hefty $249.99 per month. Early adopters will be eager to explore its enhanced capabilities.
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Deep Dive: Why Deep Think Matters
Gemini 2.5 Deep Think builds upon the established Gemini LLM family, introducing new functionalities that tackle complex problems. Its secret weapon? “Parallel thinking,” allowing it to explore multiple ideas at once, combined with reinforcement learning to sharpen its step-by-step problem-solving abilities. This AI model is designed for advanced use cases.
This model excels in mathematical conjecture testing, scientific research, and even creative tasks like code and design refinement. It’s already making a splash. Early testers have leveraged it to crack unsolved problems and generate potential proofs, and also to create a 3D graphic.
Key Areas: How Deep Think Shines
Google highlights key application areas where Deep Think excels:
- Mathematics and Science: Simulating complex proofs, exploring conjectures, and interpreting dense scientific literature.
- Coding and Algorithm Design: Excelling in tasks involving performance tradeoffs, time complexity, and multi-step logic.
- Creative Development: Demonstrating stronger iterative improvement and detail enhancement in design scenarios like voxel art or UI builds.
Deep Think sets the pace in benchmark evaluations, including LiveCodeBench V6 for coding, and Humanity’s Last Exam, which covers math, science, and reasoning.
It outpaces Gemini 2.5 Pro and competitors like OpenAI’s GPT-4 and xAI’s Grok 4 in some categories.
Deep Think vs. Gemini 2.5 Pro: A Detailed Comparison
While both are part of the Gemini 2.5 family, Deep Think is positioned as the more analytically skilled variant, especially for complex reasoning and multi-step problem-solving. Its innovative use of parallel thinking and reinforcement learning sets it apart.
Deep Think is better at handling nuanced prompts and generating more refined outputs, according to Google, and it offers more detail in voxel art generation. The table below summarizes some of the differences:
| Capability / Attribute | Gemini 2.5 Pro | Gemini 2.5 Deep Think |
|---|---|---|
| Inference speed | Faster, low latency | Slower, extended “thinking time” |
| Reasoning complexity | Moderate | High — uses parallel thinking |
| Prompt depth and creativity | Good | More detailed and nuanced |
| Benchmark performance | Strong | State-of-the-art |
| Content safety & tone objectivity | Improved over older models | Further improved |
| Refusal rate (benign prompts) | Lower | Higher |
| Output length | Standard | Supports longer responses |
| Voxel art / design fidelity | Basic scene structure | Enhanced detail and richness |
Deep Think’s higher refusal rate may limit its flexibility compared to 2.5 Pro. The Pro model is better for speed and responsiveness.
Ultimately, the choice depends on your needs: 2.5 Pro for speed and fluidity, or Deep Think for rigor and reflection.
Unpacking the IMO Achievement
In July, a more advanced version of the Gemini Deep Think model made history by securing gold-medal status at the 2025 IMO, the ultimate math competition for high school students.
The system solved five of six challenging problems and became the first AI to receive gold-level scoring from the IMO. It scored 35 out of a possible 42 points, exceeding the gold threshold, and produced solutions that were, in many cases, easier to follow than human competitors.
How to Get Your Hands on Deep Think
Deep Think is exclusive to the Google Gemini mobile app (iOS and Android), accessible only to Google AI Ultra plan subscribers.
- Promotional offer: $124.99/month for 3 months
- Standard rate: $249.99/month
- Included features: 30 TB of storage, access to the Gemini app with Deep Think and Veo 3, as well as tools like Flow, Whisk, and 12,500 monthly AI credits
Subscribers can activate Deep Think within the Gemini app by choosing the 2.5 Pro model and enabling the “Deep Think” option. It supports a limited number of daily prompts and is integrated with functions like code execution and Google Search, promising lengthier, more comprehensive outputs than the standard versions. Access is limited to the Google AI Ultra plan.
Why it Matters for Enterprises
Gemini 2.5 Deep Think represents the practical realization of a significant research milestone.
While currently only accessible through individual user accounts, Deep Think offers a glimpse into the future of collaborative AI, enabling researchers to explore groundbreaking solutions. For Ultra subscribers, it provides a powerful leap towards more capable and context-aware AI assistance. It also has the potential for significant impact in enterprise settings, helping to augment human capabilities in complex problem-solving scenarios.
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