Gemini 3 Deep Think by Google
Google’s best model for logical thinking and understanding
OpenAI o3-mini
New reasoning models from OpenAI
Updated February 2026
| Gemini 3 Deep Think by Google | OpenAI o3-mini | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 12 | 1 |
| Pros | 0 | 0 |
| FactScore™ | 55.7 | 15.1 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Gemini 3 Deep Think by Google — Pros
No unique pros listedBoth tools — Pros
—Only in OpenAI o3-mini — Pros
No unique pros listedOnly in Gemini 3 Deep Think by Google — Cons
—Both tools — Cons
—Only in OpenAI o3-mini — Cons
—Details
| Gemini 3 Deep Think by Google | OpenAI o3-mini | |
|---|---|---|
| Categories | Foundation Models | Foundation Models |
| Platforms | Web | Web |
| Became Popular | December 5, 2025 | February 1, 2025 |
| Website | blog.google | chatgpt.com |
Who Should Pick Which?
Choose Gemini 3 Deep Think by Google if...
- No unique pros listed
Choose OpenAI o3-mini if...
- No unique pros listed
With a FactScore™ of 55.7 vs 15.1, Gemini 3 Deep Think by Google leads in community reception. Gemini 3 Deep Think by Google uniquely offers No unique pros listed, while OpenAI o3-mini stands out for No unique pros listed.
What Users Say
Gemini 3 Deep Think by Google
We chose Gemini 3 for thegro.ai because we needed more than text generation — we needed reasoning. Across real outbound workflows (lead research, prioritization, structured outputs, and human-sound...
I chose Gemini 3 Deep Think for its ability to help me map out the complex logic and architecture behind the visual-to-terminal pipeline. A huge thanks to both: Gemini 3 Deep Think for being a powe...
Kuku uses Gemini for its tool-calling capabilities, which enables the AI to go beyond chat. Gemini allows Kuku’s AI agent to search, read, and edit real files reliably with low latency and a genero...
OpenAI o3-mini
o3-mini has been super helpful for our ODRR tool, it produced absolutely on-point results most of the times, we tried other models, but o3-mini in the end was the most cost effective and accurate m...
Related Comparisons
Frequently Asked Questions
Which is better, Gemini 3 Deep Think by Google or OpenAI o3-mini?
Based on FactScore™, Gemini 3 Deep Think by Google leads with a score of 55.7 vs 15.1. Gemini 3 Deep Think by Google has a higher rating of 5.0★ compared to 5.0★.
What are the pros of Gemini 3 Deep Think by Google compared to OpenAI o3-mini?
Gemini 3 Deep Think by Google uniquely offers: No unique pros listed.
What are the pros of OpenAI o3-mini compared to Gemini 3 Deep Think by Google?
OpenAI o3-mini uniquely offers: No unique pros listed.
Is Gemini 3 Deep Think by Google better rated than OpenAI o3-mini?
Gemini 3 Deep Think by Google is rated 5.0★ from 12 reviews. OpenAI o3-mini is rated 5.0★ from 1 reviews.
What is the FactScore™ of Gemini 3 Deep Think by Google and OpenAI o3-mini?
FactScore™ weighs rating and review volume together. Gemini 3 Deep Think by Google scores 55.7 and OpenAI o3-mini scores 15.1.
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