GPT-5.1 vs Gemini 3
A detailed comparison to help you choose the right AI tool for your needs.
Our Pick
Gemini 3 Pro
Gemini 3 Pro edges out GPT-5.1 Instant with superior overall performance and features that make it the better choice for most users.
Try Gemini 3Feature Comparison
Feature
GPT-5.1
Gemini 3
Ratings
Overall Rating
4.7
4.8
Coding
4.5
4.7
Writing
4.6
4.5
Reasoning
4.8
4.8
Speed
4.8
4.7
Value
4.6
5.0
Pricing
Monthly Price
$20
$20
Free Tier
Input (per 1M tokens)
$2.5
$1.25
Output (per 1M tokens)
$10
$5
Features
Context Window
128K
1049K
Vision/Images
Audio
Video
Code Generation
AI Agents
GPT-5.1 Instant
Pros
- Fast responses with adaptive reasoning
- New personalization presets
- Strong math and coding improvements
- Multimodal (text, image, audio)
- Free tier available
Cons
- Coding not as strong as Claude Opus
- Can be verbose
- Writing style less natural than Claude
Gemini 3 Pro
Pros
- Best value - cheapest premium model
- Massive 1M+ token context
- First model to hit 1500 Elo
- True multimodal (video, audio, text, images)
- Excellent for large codebases
Cons
- Writing style less polished than Claude
- Google ecosystem integration can be limiting
- Deep Think mode limited to Ultra subscribers
Choose GPT-5.1 if you need:
General assistant, math problems, quick coding help
Choose Gemini 3 if you need:
Large projects, budget-conscious users, multimodal tasks
Ready to get started?
Both tools offer free tiers or trials. Try them out and see which one works best for your workflow.