Gemini 3 Pro – Deep Think Mode
Gemini 3 Pro – Deep Think Mode is a reasoning model developed by Google Deep Mind. It is designed to specialize in advanced logical thinking and is provided under a closed license.
Parameters
Undisclosed
Context Window
License
Proprietary
Release Date
2025-12-04
API Pricing
API pricing for this model is not yet available
Strengths
- ・Advanced reasoning capabilities
- ・Made by Google DeepMind
- ・Specialization in logical thinking
Weaknesses
- ・Source code not disclosed
- ・Commercial use limitations
- ・Lack of transparency to external parties
Use Cases
- ・Solving complex problems
- ・Logical analysis tasks
- ・Tasks requiring advanced reasoning
Deep Analysis
Arena Elo (Overall)
1486
Based on 41,631 votes on Chatbot Arena
Arena Elo (Coding)
1519
Top coding Elo, 8,622 votes
Arena Elo (Hard Prompts)
1504
22,573 votes
ARC-AGI-2
84.6%
ARC Prize verified, #1 among all models
Context Window
2M tokens
Largest context in the family (BenchLM reports 2M)
Overall Score (BenchLM)
90/100
#7 of 117 models on provisional leaderboard
Agentic Rank
#4
Score 95.4/100, strong on Terminal-Bench, BrowseComp, OSWorld
Multimodal Rank
#1
Score 100/100, strongest on MMMU-Pro, CharXiv
Release Date
February 12, 2026
Same release as Gemini 3 Deep Think upgrade
Strengths
- ・Arena Elo 1486 overall, 1519 in coding - top-tier human preference rankings
- ・Best multimodal model (#1 rank, 100/100 score) for screenshots, documents, charts
- ・2M token context window (largest in the Gemini 3 family)
- ・Strong agentic performance (#4 rank, 95.4/100) on tool use and computer tasks
- ・Excellent hard prompt handling (Elo 1504)
Weaknesses
- ・Coding benchmark rank is #30 (74.5/100) despite high Arena coding Elo - discrepancy between benchmarks and human preference
- ・Only 4 of 221 tracked benchmarks have published scores (limited verified data)
- ・Higher cost than standard Gemini 3 Pro ($2/$12 per 1M tokens)
- ・Deep Think mode increases latency significantly
- ・Not yet broadly available via API (early access program)
Competitor Comparison
| Model | Arena | SWE | GPQA | Price |
|---|---|---|---|---|
| Gemini 3 Pro Deep Think | 1486 | ~76% | ~94% | $2/$12 per 1M |
| Gemini 3.1 Pro | ~1490 | ~78% | ~92% | $2/$12 per 1M |
| Claude Opus 4.6 | ~1490 | ~81% | 91.3% | $15/$75 per 1M |
| Gemini 2.5 Pro | 1465 | 63.8% | 84% | $1.25/$10 per 1M |
Gemini 3 Pro Deep Think Mode is the reasoning-enhanced variant of Gemini 3 Pro, achieving Arena Elo 1486 overall and 1519 in coding on Chatbot Arena. It ranks #1 in multimodal tasks and #4 in agentic benchmarks. Released February 12, 2026, it combines deep chain-of-thought reasoning with Gemini 3 Pro's base capabilities, excelling at complex multimodal workflows and hard prompts.
Sources
Analysis generated: 2026-05-24