Model Comparison
GPT-5 CodexGPT-4.1
Let's see who can write code better - GPT-5 Codex or GPT-4.1
Model Information
GPT-5 Codex
Description
Flagship model from OpenAI optimised for coding tasks
Specifications
Context Window272K
Max Output33K
ReleasedSep 2025
API✓
Pricing (per 1M)
In / Out
$1.25/ $10
Key Features
CodingAdvanced reasoningMulti-modal native
Strengths
- ✓State-of-the-art performance
- ✓Optimised for coding
- ✓Large context window
Weaknesses
- ✗Likely very expensive
- ✗Unknown specifications
Agent Support
No known agents
GPT-4.1
Description
Enhanced GPT-4 with improvements in reasoning and context handling
Specifications
Context Window200K
Max Output16K
ReleasedJan 2025
API✓
Pricing (per 1M)
In / Out
$2/ $8
Key Features
Extended context windowImproved reasoningBetter code generation
Strengths
- ✓Large context window
- ✓Enhanced capabilities
- ✓Better performance
Weaknesses
- ✗Not yet released
- ✗Specifications uncertain