Model Comparison
GPT-5.3 CodexGemini 2.0 Flash
Let's see who can write code better - GPT-5.3 Codex or Gemini 2.0 Flash
Model Information
GPT-5.3 Codex
Description
Next-generation coding-optimized model from OpenAI with enhanced autonomous development capabilities
Specifications
Context Window272K
Max Output33K
ReleasedFeb 2026
API✓
Pricing (per 1M)
In / Out
$1.5/ $12
Key Features
Advanced autonomous codingEnhanced code reviewMulti-step reasoningFull-stack development
Strengths
- ✓State-of-the-art coding benchmarks
- ✓Superior autonomous task completion
- ✓Excellent code review capabilities
- ✓Large context window
Weaknesses
- ✗Premium pricing
- ✗Optimized for coding over general tasks
Agent Support
No known agents
Gemini 2.0 Flash
Description
Fast and efficient Gemini 2.0 model
Specifications
Context Window200K
Max Output8K
ReleasedDec 2024
API✓
Pricing (per 1M)
In / Out
$0.1/ $0.4
Key Features
Fast inferenceGood context windowMulti-modal support
Strengths
- ✓Fast responses
- ✓Good balance of speed and capability
- ✓Reliable performance
Weaknesses
- ✗Smaller context than 2.5 models
- ✗Less capable than Pro versions
Agent Support
No known agents