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Gemini 3 Pro: Exceptional Reasoning & Multimodal Understanding
Gemini 3 Pro is Google's new large language model, released by Google DeepMind on November 18, 2025. It builds on the success of previous versions like Gemini 2.5 Pro and Flash, aiming to compete directly with models such as OpenAI's GPT-5.1.
Gemini 3 Pro offers unprecedented depth and nuance, able to understand complex topics, solve novel problems, and synthesize information across different inputs. It excels at processing and integrating data from multiple modalities, making it effective for visualizations, long documents, code, media, and more.
The model can also plan, reason, and execute multi-step tasks. These include complex coding projects, dynamic UI generation and workflow automation across varied applications.
Key Features and Improvements of Gemini 3 Pro
Gemini 3 Pro introduces several enhancements:
- Advanced Multimodal Integration: Gemini 3 Pro expands beyond Gemini 2.5's handling of multimodal inputs. It processes and synthesizes diverse inputs with state-of-the-art performance, scoring 81% on MMMU-Pro (multimodal understanding) and 87.6% on Video-MMMU for video analysis.
- Superior Reasoning and "Deep Think" Architecture: Gemini 3 Pro features an advanced verifier module for self-checking outputs, improving accuracy on complex tasks like coding, scientific analysis, and creative problem-solving. It achieves PhD-level performance on benchmarks like GPQA Diamond (91.9%), Humanity’s Last Exam (37.5% without tools), and a perfect 100% on AIME 2025 math with code execution. It also sets a new record of 23.4% on MathArena Apex.
- Performance Boosts: Gemini 3 Pro leads global AI benchmarks, notably scoring above 1500 Elo on LMArena and achieving new records on tasks involving mathematics, coding, factual accuracy, and long-horizon planning.
- Reduced Hallucinations: Gemini 3 Pro comes with a lower rate of hallucinated facts. It tops the LMSYS Arena Leaderboard with 1501 Elo and scores 72.1% on SimpleQA Verified for reliable, context-aware responses.
These features position Gemini 3 Pro as a "reimagining" of AI for creative, technical, and industrial uses, such as game development, web design, and robotics.
Spec Comparison Between Gemini 3 Pro and Other Models
| Model | Release Date | Agentic Capabilities | Context Window | Speed |
| Gemini 3 Pro | Nov 2025 | ✔️ | 1M tokens | High |
| Gemini 2.5 Pro | Mar 2025 | ✔️ | 1M (2M soon) | Medium |
| Gemini 2.5 Flash | Mar 2025 | Partial | 1M tokens | Very High |
| GPT-5.1 | Nov 13, 2025 | ✔️ | 400K tokens | High |
| Claude Sonnet 4.5 | Sep 29, 2025 | ✔️ | Up to 1M tokens | High |
| Claude Haiku 4.5 | Oct 15, 2025 | ✔️ | 200K tokens (64K output max) | Very High |
Benchmark Performance Between Gemini 3 Pro and Other Models
| Benchmark | Gemini 3 Pro | Gemini 2.5 Pro | Gemini 2.5 Flash | GPT-5.1 | Claude Sonnet 4.5 | Claude Haiku 4.5 |
| GPQA Diamond (Science Reasoning, %) | 91.9 | 84.0 | ~75 (est.) | 85.2 | 89.4 | 82.1 |
| Humanity’s Last Exam (General Knowledge, %) | 37.5 | 21.6 | N/A | 26.5 | 13.7 | 10.2 (est.) |
| AIME 2025 (Math, %) | 100 (with code) | 92.0 | ~80 (est.) | 95.5 | 100 (tie with code) | 85.0 |
| SWE-Bench Verified (Coding, %) | 76.2 | 63.8 | ~55 (est.) | 74.8 | 77.2 | 73.3 |
| LMSYS Arena Elo | 1501 | 1420 (est.) | 1350 (est.) | 1480 | 1492 | N/A (not ranked) |
| API Input Cost (/M tokens) | $0.35 (est.) | $0.35 | $0.075 | $0.75 | $3.00 | $1.00 |
| API Output Cost (/M tokens) | $1.05 (est.) | $1.05 | $0.30 | $2.50 | $15.00 | $5.00 |
How to Access Gemini 3 Pro?
There are several ways you can get access to this model:
- Visit gemini.google.com in your browser (no sign-in needed for basic features, but sign in for full access).
- Download the official Gemini app on Android (via Google Play Store) or iOS (via App Store).
- If you're a developer, you can access this model through the Gemini API or Vertex AI on Google's cloud platform (cloud.google.com/vertex-ai). You'll need to specify the model as "gemini-3-pro" in your requests. This requires a Google Cloud account and may involve authentication.
- For easier and smoother access to Gemini 3 Pro, you can try it on HIX AI. Here you can chat with not just Gemini 3 Pro, but all the other latest models like GPT-5.1, Claude Sonnet/Haiku 4.5, and many more!
Questions and Answers
What are the most significant upgrades in Gemini 3 Pro?
The significant upgrades in Gemini 3 Pro include a new multi-tower architecture for handling mixed input types, minimized hallucinations, and improved multimodal reasoning.
What is the knowledge cutoff date for Gemini 3 Pro?
Gemini 3 Pro's knowledge cutoff date is January 2025. This means the model was trained only on data and events up to this point, so it does not inherently “know” about developments, discoveries, news, or policy changes that occurred after January 2025.
How does Gemini 3 Pro handle complex tasks?
Its multi-tower architecture processes visual, audio, and textual information in parallel before synthesizing them at higher reasoning layers. This enables Gemini 3 Pro to solve complex, multi-step problems and follow detailed instructions with minimal human intervention.
Where can Gemini 3 Pro be used?
You can try Gemini 3 Pro on the Gemini website/app, Google Workspace (Docs, Gmail, Drive), Chrome browser, and cloud platforms (Vertex AI, Firebase). If you need faster and easier access to this model, try it on HIX AI now!
How does Gemini 3 Pro ensure privacy and safety?
Gemini maintains Google-standard privacy and safety protocols, with improved content filtering, enterprise administration controls, and alignment with Google Workspace security guidelines.