Model Comparison
Claude Sonnet 4.5GPT-5 Nano
Let's see who can write code better - Claude Sonnet 4.5 or GPT-5 Nano
Model Information
Claude Sonnet 4.5
Description
Balanced Claude 4.5 model with excellent performance
Specifications
Context Window200K
Max Output8K
ReleasedSep 2025
API✓
Pricing (per 1M)
In / Out
$3/ $15
Key Features
Balanced performanceAdvanced reasoningCode generationMulti-modal capabilities
Strengths
- ✓Good price-performance ratio
- ✓Versatile capabilities
- ✓Fast inference
- ✓Strong at most tasks
Weaknesses
- ✗Not as powerful as Opus
- ✗Higher cost than Haiku
- ✗May struggle with very complex tasks
Agent Support
No known agents
GPT-5 Nano
Description
Ultra-lightweight version of GPT-5
Specifications
Context Window272K
Max Output4K
ReleasedJun 2025
API✓
Pricing (per 1M)
In / Out
$0.05/ $0.4
Key Features
Minimal resource usageEdge deployment readyBasic GPT-5 capabilities
Strengths
- ✓Very low cost
- ✓Fast responses
- ✓Good for simple tasks
Weaknesses
- ✗Not yet released
- ✗Limited capabilities